A few quick comments, firstly Mega Power Supply with 311X2 will fill crowd clear better than Gamma Contamination (thought GC is a chad overclock.) I love your use of neurotoxin nades here, especially for solo, because they really can supplement your crowd clear enough to compensate for sludge if you hold with a resup. If you don't have a scout you need to explode, I would advise running full ammo c4 with the stun mod because just popping it can help you get a res or resup.