This mission is an auxiliary mission in the main campaign. It's called Saboteur but so are a few missions. Basically you start at the end of a valley and have to blow up 2 T72's and 1 BMP2. The base has only 1 entrance and is surrounded by wire fences (2 layers) so you can easily be seen from any angle. There are 8 towers, only 2 or 3 maned by carrot eating sharp shooters. 3 men on the gate and 4 patrolling inside the base. Plus a few more men outside the base patrolling the grounds.
Has anyone completed this covertly. I've completed it but only by killing 35 men (the alarm got set off) and then sneaking up on the T72's with bombs and finally taking out the BMP2 with a "borrowed" RPG. That 2 took bloody hours! Never mind the loading times.
It's one tough mission.