rolled 85 = 85
Focus on the anti-mech and vehicle mechs, with two of the four men who have come to assist you. Order Annie to go for the anti-infantry dirtbags (gotta keep an eye on the boys underfoot).
Have Jack, the two remaining dudes, and the tanks focus on the medium anti-mech pricks.
Sweep aside infantry that gets in your way, and try to avoid the tanks for now, but the mechs are the priority.
Once they are mopped up, focus on taking out the Siege Mechs. If Annie finishes off the light armoured bastards, get her started on cracking those nuts.