@zombiegenesis I don't know too much about Transformers, (having seen only a couple of the movies and the Rescue Bots kids show) but I can speak generally about combat in FS3.
The weapon/armor behavior is complicated (described in detail here), and is probably the hardest part of the system to balance.
Skew it too much one way, and bullets bounce off bulletproof vests like Superman. Skew it too much the other way, and bullets tear through them like paper. With a wide variety of weapon types all having different penetrative capabilities (pistols, shotguns, knives, rifles, etc.) it is incredibly tedious to tune everything to generate a "fun" balance.
The built-in BSG configuration does have two "classes" of weapons and armor built in - personal and vehicle. This works because:
The weapons and armors of each class are balanced against each other.
Cross-class combat (i.e., a rifleman versus a space fighter) is pretty uncommon thematically in BSG, so the quirks of the system can be hand-managed by the GMs.
I think you could make the transformer robots work similar to the vehicles in the BSG setting, but having it also tuned for titans would probably be a bridge too far.
