I had a kraken (full sized). stock all save for a g&g gear swap (I had them laying around and I was in the mech box anyways) ran her for years (just traded her actually) never had a problem with it. I find alot of new players feel that the gun makes the soldier.... I've gone many games where trench warfare went down. FLANK EM HARD!
"its not the size, its how you use it" - Austin Powers Fasha