The features, again, but in list-form:
Manual slider to lock the side panels
Switchbox driven by M motor with levers inside. As everything is inside, all you can do is deploy, so you can only reach the levers in deployed state.
Powered Function 1: Deploy. This one function uses 9 worm gears.
Powered Function 2. Rotate weapons
Powered Function 3. Raise weapons
Manual: steering on axles 1, 2 and 4
Manual: shoot the weapons (spring-loaded; every weapon has 3 bullets)
Double tyres on axle 3
Ground clearance is less than a stud.