Solid Vehicles vs Prop Vehicles

[Feline XVII]

I noticed the vehicles in that JS_Coop_zero_G_oc4 map, two things I liked, the fact that they had custom controls, second they had a new design. Does anyone have a link to tutorials for these things? Maybe an Example? That'd be great... yeah...

I know it's more of a scripting thing, and I know the few triggers that vehicles use, but I have no clue how to use the movement keys to allow the vehicle to move (as in a solid vehicle).


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Edit:
game_ui: Aside from slugish controls, this works perfectly.