Controls

Pitch & Roll = Drive
AG1 = Open doors
Ag3 = Activates warning lights
Ag5 = Secures load to bed (be a bit careful with this, and read tip lower down)
Ag6 = Raises side panels on bed (by default it is on flatbed mode)
Ag7 = Activates dumping, is combined with Throttle
V (countermeasures) = Horn
Select weapon "Lights On" = Turns on headlights (appears to be PC only)
Select weapon "Lights Off" = Turns off headlights (appears to be PC only... which means this is the default)
Landing gear = Rear stabilizers (Remain from crane version [which is delayed by... a lot, for technical reasons])

Tips

When you use AG5 it may drag the bed down a bit, use ag 7 to raise it a tiny bit to compensate, this is due to weird magnet physics...
Do not turn too hard at high speeds

Features

High weight limit
Good performance
Simple but okay looking cab
Driver and passenger cameras