on mission 2 ignore the salvagable centurion. try pick up BOTH the shadowcat and cougar. pretty damn hard with only one mech against 3-4 pirates.
mission 3 ignore the hunchback and only salvage clan mechs. say the twolf and summoner. difficult, highly reliant on clan-clan fight results. also reliant on them not seeing your convoy, so you gotta go pretty damn fast to get the convoy going. very exciting.