I have had this happen multiple times now, both with vanilla and with OPTRE on this. I am playing with the invaders disabled, and after some time, a large force of both BLUFOR and OPFOR with spawn within the territory that we have captured, often with armed vehicles or APCs, but they do not fight each other and instead only fight us. I have had this happen multiple times in this one mission now, with this most recent incident having OPFOR spawn in and rush an outpost we own with multiple APCs.

Is there a way to fix this?