Like Brace Structure. If it reduced resource income while active or costed muni or MP(nothing crazy) I think it would be cool.
On the 37mm, I have no problem at all with it denying territory but I've had it wipe retreating squads one too many times. Tbh I think having to face it like British AT guns in VCoH but buffing it to vet 5 Flaktrack levels would be good too.
Shouldn't really cost anything. It disables the truck so your not getting any units or benefits from it.