XL 175 to get the next heat sink. Plenty of SRM ammo to last you the whole game. When I was dying 2 minutes into the game 1 SRM ammo was enough, however now I am lasting through the whole game and 1 SRM ammo doesn't cut it anymore, 4 tons is a decent amount for me right now. Discuss.
4 tons of ammo is SO too much for 2xSRM2 imho. You can easily drop 2 tons and slam 2xSRM4 in it instead. In this case you would have "only" 25 salvos instead of 100, but you deal double dmg with a hit & run salvo. Dropping the XL190 down to the XL175 is 0,5 difference in tons, but almost 15 kph in speed. Really bad deal imho. Speed is life in this mech.