For an urban combat suit you usually want as much armor as possible rather than stealth - being hard to hit won't save you when someone brings down the house!
I'd suggest a medium BA, 3 ground MP, 10 advanced armor, MagClamps, Gloves, MRR, Firedrake.
Thought if you want to get real cute (and expensive...): Heavy BA, 2 ground MP, Mech jump booster (move 3/3/1), 10 imp.stealth armor, gloves, Magclamps, 2xMG, LTAG.