well maybe you guys like Personalised Orders so here it goes:
Burn: GET THAT GUNNER (Since you have BEST EAGLE EYE: THAT GUY NEEDS TO GO ASAP)
Ares: Do your magic baby, shoot as many as you can
Hep: You should be able to get in close with your shield of life power
Castor: No idea what you can do there really, tho with the armour and the 5 points of cover I think you should try to sneak up past there cover and shoot them from a better position, or engage in Melee. BUT DONT RUSH IN
San: Same as Castor, I don't think you're gonna hit a lot from that position, so maybe trying to sneak past there cover and shoot from a better position, or engage them in Melee Combat, you do have a bit better defence against guns than Castor tho.
BUT THE MOST IMPORTANT THING, While Burn takes out the gunner
the others CLEAR THE SAME BARRICADE, work your way up, but Ares don't start firing at the last barricade, keep your efforts concentrated.