Like the name states, this build is for those who wants to complete the new ballistic challenges. This build is quite slow but is ghost-heat less and is very cool, so maybe you could not fully skill the operation tree (seriously, if you manage to overheat with maxed operations skills I'll personally give you a cookie). UAC20 double tap for burst damage and LBX20 to finish off and crit components. Kinda nasty. Don't forget to fully train your ammo skills: you can't deal more than 1260 damage with skills, 980 if you won't skill any.