I would like four arms to grant some kind mechanical advantage in combat, yes. Why shouldn't it? It's not impossible to do, and of course it will cost a fair number credits, consume cybernetic upgrade slots, and possibly even cost some XP if something like that could be worked out.
There is a counter-argument that having four arms should inflict some kind of mechanical penalty. Why shouldn't it? It's not impossible that the arms would get in the way of one another.
You are correct, it absolutely could and SHOULD come with penalties of some kind. Hence why I want to discuss the concept and bounce ideas off you guys. (It should be noted, however, that this character is made from the spare parts of General Grievous, meaning his two arms can split into four as a maneuver, thus keeping the extra arms from getting in the way of most tasks when he isn't fighting.)
Earlier on someone suggested that adding an extra Difficulty die per additional additional arm would be a good fix, which I thought was a bit too much, hence why I suggested substituting Setback dice instead.
So far, no one has been able to provide a reason why such an approach would be unbalancing even when compared to Auto-fire, yet I'm still seeing a lot of instance that it's a bad idea anyway. (One person even told me my approach to GMing was garbage... granted that netted my friends and I a rather hearty laugh, but it was also totally uncalled for. The fact that I want to figure out how to make this work shouldn't offend anyone.)
Call me a munchkin, a powergamer, or anything else you want to call me; if it means I'll get a fun, reasonably balanced set of rules regarding the use of four arms in combat, I'll be happy.
Edited by JonahHex