So, the 3N model Rifleman has neither ammo nor armor in abundance. Queue immediate modification to double the ammo stores and the instant impulse to make another Blackjack clone. Decent long range damage for the approach, but quickly overheats in brawl range if using all 4 MLs. Adjustment: Drop the 2SLs, since you won't want to get that close, anyway. No SLs improves Heat Efficiency by a tick, and then spend that free ton on armor to gain one more tick in Durability, too. Pros: More survivable than stock, 190 Alpha, AC ammo for 15 rounds. Cons: No shield arm, no JJ, not great armor, either. Jagermech clones Blackjack better. This build shown using standard equipment. Using + or ++ is a good idea, as is a Defense Gyro.