Ok heres what im thinking. We get someone to create a distraction at the south wing of the base, while we have two stealthy people infiltrate from a ventilation system near the west wing. The stealthy people will disarm the alarms, so the rest of the team can enter. Three people will take out the second floor which is home to the bases general. This floor will be highly guarded so it will be done by the best fighters of the group. the lower floor will have a lot of attention on it. We will have a unit try to take attention off of the people who made the distraction so they don't have to go through a fire fight. We will slowly surround the troops at the 1st floor and take them out. Maybe set up traps so kill a good number of them.