Mission 13 takes place on April 15, 2161 and is part of the Frontier Operations campaign.
Briefing
Our supply lines to the front have recently come under attack from some old friends of yours, Colonel McGann and company. High Command wants them out of the way and we've been given the gig-we won't disappoint. We have got a large shipment of arms on its way to the front and we've made sure that word has leaked out about it. With any luck McGann and friends will turn up expecting some easy pickings. The convoy's fighter escort is under instructions to fire off a few rounds and then bug out.
Your orders are to track McGann and the shipment back to their base, then and only then will you be given the green light to strike Wipe out McGann's fighters and Gamma wing will do the rest.