> ## Documentation Index
> Fetch the complete documentation index at: https://docs.czautoz.co.uk/llms.txt
> Use this file to discover all available pages before exploring further.

# Mod Compatibility

> Which lock, trader, garage and admin mods have been verified against the helicopters, what exactly works, and the one or two that need a setting on their side.

The helicopters are built as **CarScript** vehicles, so most vehicle mods treat them like any other car. Where a mod hooks into something a car does and a helicopter doesn't — an engine that starts differently, a door that isn't a car door — we add the hook ourselves. Every one of these fixes is **soft**: nothing new is required, and a server without a given mod runs exactly as before.

<Tip>
  Everything in the table was checked **against the mod's own source**, not guessed from behaviour. Most rows need nothing from you — the two that do are marked.
</Tip>

## Verified mods

| Mod                                                             | What works                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | You need to                                                                                                                                       |
| --------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| **MuchCarKey**                                                  | Locks are honoured on entry, exterior doors and the ramp, in **any load order**. With `CanStartWithoutKey` off, starting a keyed helicopter needs its key — in hand or in inventory as the server has it configured, master keys included — for both the cockpit start and the autopilot's ground start. Its unused-vehicle cleanup counts **flying** as using the aircraft, so a helicopter flown daily but never re-locked is no longer removed. A locked helicopter refuses the sling hook. | Nothing                                                                                                                                           |
| **DayZ Expansion** (Vehicles / Market)                          | Locks are honoured. Market sell-back was never affected. A locked helicopter refuses the sling hook.                                                                                                                                                                                                                                                                                                                                                                                           | Nothing                                                                                                                                           |
| **Dr Jones Trader**                                             | Selling a helicopter back works — the pilot is recorded as owner the moment the engine starts, the same hook a car fires. Its CarLock is honoured in any load order. A locked helicopter refuses the sling hook.                                                                                                                                                                                                                                                                               | Nothing                                                                                                                                           |
| **TraderPlus**                                                  | Parking in the TraderPlus Garage works (ownership recorded at engine start). Selling through the receipt system was never affected. TraderPlus CarLock is honoured in any load order. A locked helicopter refuses the sling hook.                                                                                                                                                                                                                                                              | Nothing                                                                                                                                           |
| **TraderX**                                                     | Selling a helicopter back works (ownership recorded at engine start).                                                                                                                                                                                                                                                                                                                                                                                                                          | Nothing                                                                                                                                           |
| **AutolockVehicles**                                            | Starting the engine cancels its lock timer, so it no longer locks a helicopter underneath its pilot.                                                                                                                                                                                                                                                                                                                                                                                           | Nothing                                                                                                                                           |
| **VirtualGarageFull**, **MuchCarPark**, **CarCover**            | Reviewed source-by-source in v0.4.3 — no compatibility fix was needed.                                                                                                                                                                                                                                                                                                                                                                                                                         | Nothing                                                                                                                                           |
| **Vehicle3PP** (3rd-person camera)                              | Applies its whitelist to the helicopters like any car.                                                                                                                                                                                                                                                                                                                                                                                                                                         | Add `CZAutoz_Helicopter_Base` to its whitelist — one class covers every helicopter. [Details →](/getting-started/common-issues#mod-compatibility) |
| **COCAs\_NoVehicleDamageMOD**, **NoVehicleDamage (2019)**       | Work, but only when loaded **before** the helicopters. Loaded after, they replace the car's contact and physics callbacks without passing them on, which silences rotor collision, wake-on-contact and the rotor/tilt updates other players receive.                                                                                                                                                                                                                                           | Put them **earlier** than the helicopters in `-mod=`. [Details →](/getting-started/common-issues#mod-compatibility)                               |
| **CFTools / GameLabs**, **VPP**, **COT** (admin repair & spawn) | Admin repair no longer fills a helicopter with cargo modules you never configured (fixed v0.4.0). Spawning works; a client crash on spawn means a **version mismatch** between that client and the server.                                                                                                                                                                                                                                                                                     | Keep every client and the server on the same build                                                                                                |
| **Vehicle recovery / teleport mods**                            | A parked helicopter moved by an outside tool now relocates correctly on every client (fixed v0.4.0).                                                                                                                                                                                                                                                                                                                                                                                           | Nothing                                                                                                                                           |
| **Chat mods** (any)                                             | Every helicopter key — settings window, autopilot map, admin panel and the flight controls while seated — stands down while a text box has keyboard focus, whichever chat mod provides it (v0.4.3).                                                                                                                                                                                                                                                                                            | Nothing                                                                                                                                           |

## Not listed?

A mod that isn't in the table simply hasn't been checked yet — it does **not** mean it conflicts. Because the helicopters are CarScript vehicles, most vehicle mods just work. If something does misbehave with a mod you run, tell us in [Discord](https://discord.gg/kAm8KyH58d) with the mod's name and what you saw, and we'll check it against the mod's source the same way.

<Note>
  Lock and trader integration landed across v0.4.0 – v0.4.3. If a row above doesn't match what you see, make sure the server **and every client** are on the current build first — see the [changelog](/changelog).
</Note>