You fell for their "bait mechs"
Check the other mechs in there, there can be multiple mechs and more than one team, you may not even see their actual mechs.
Yeah naw,
Mission 1-3-4 has six enemies and poor payout for gold/exp
Mission 1-7-7 has seven enemies and ok payout for gold good for exp
If you run out of fuel, replay the raid...