Based on the DF1 Mission "Insurrection" but not a remake. Eliminate all resistance at Objective Venom. It's a small Mission best for SP (for Coop maybe too small). IMPORTANT: you need DF1-Terrains & EXP.
Fight for thr center compound. Teams start in their own bases, work their way through a series of twisting tunnels and eventually come out to the center area. Once thr center is taken by the enemy is is hard but not impossible to take it away. There are base rape measures implimented. Good luck and Good hunting.