I'd like to add a third weapon to the pilot seat of a vehicle so that it can be used without "switching seats". I've added the third weapon to the vehicle's ODF and given it a weapon channel of 1 (the same way it's assigned to alternate weapons on units). Everything seems to munge well, but in game I can't find any way to switch to it. Vehicles don't seem to have to have any command to switch either the primary or secondary weapon to an alternate. Does anyone have any ideas for how to do this? Thanks.

You can't add a second primary or secondary weapon. The problem is that in vehicles the "rotate weapons" command is used as the "rotate seats" command. I'm afraid you're stuck with two weapons.

That's what I figured. I was just hoping someone had figured out a clever way around it.