No Skills. Ran out of UAC2 ammo with 2 enemies left, but they were a ways off so I only got to take 2 laser shots at them before they, too, died. I look forward to getting Ammo skills. Swapping the TC1 for more ammo might be reasonable. We'll see how often it runs out of ammo.
_ That gets you a full 2 extra tons of UAC2 ammo. Given how little the arms shield, you probably don't need full armor on them on any MAD II, but your mileage may vary.