This is an early alpha - there are still bugs (not xenos) causing problems, but it should work for you.
It is based on the Militech Behemoth truck, but doesn't replace it.

Installation
Simply unpack the contents of the zip to your Cyberpunk game folder

Uninstallation
Remove the apc.archive file and the apc custom entity file in the Appearance Menu Mod 'Collab' folder

Use
Use with Appearance Menu Mod - AMM (unless you know how to spawn custom entities using the console)
in AMM navigate to the Spawn tab, and in the Custom Vehicles category select the APC.

Features
Driveable - done
Open door and mount vehicle - done
Texturing - done
Alternate skin (street camo) - done
Collision - done
Interior modeling - done in the ‘see inside’ appearance.
Lights - done
Weapons - An alternative ‘APC Armed’ is now available that implements this, based in the Basilisk, but it also moves like the Basilisk, not sure not to fix that.

Bugs
Jumping wheels - fixed (hopefully)
Lights - can't get the lights to glow - I'd welcome any tips
Xenomorphs - TBC ;)