Do first fight, grenade armored guys twice, pick up rocket. (Rockets: 1/0, BP: ~10k, Grd: 6)
Equip RP, do Cow Fight, smoke past elevator (RP: 8, BP: ~16k)
Skip roofs, pick up rocket and FC canister, do skips. (Rockets: 2/0)
Fight after railroad, pick up box, polearm combo and RP. (RP: 7, BP: ~23.5k)
Do stuff until Monsoon, equip Grenade. (BP: ~36k)
(Rockets: 0/0, EM: 2+, BP: ~49k)
Grenade, polearm, and sky high your way through first phase. (Save at least 4 for last phase)
Farm EM/Nanopaste from cars with defensive offense.
Customize, HF+3(?), Polearm+3 (BP: ~17k)