TMN

It didn't work for me. I tried reverting to the cutscene before the mission where I lost the weapons, but no luck. I even tried reverting to the previous mission, but they were still gone.

It helps a lot if you get all 3 T72s and the T80 from mission 3. Go alone to clear out the base. When you get near the base, radio for the reinforcements to come. Then kill the 5 guards at the base quickly. Hop into the leftmost T72 as gunner, load HEAT, and shoot at the enemies running down from the castle. After a couple shots, your group should arrive. Order them all into the tanks. Tasmanian Devil will radio about the incoming tanks. Order everyone to move to the waypoint. On your way there, you'll encounter a T72 and a BMP. They aren't too hard to eliminate. You won't encounter any more enemies after that.

I completed my objectives, but the mission hasn't ended. I took out the convoy, destroyed the tanks that came after it, loaded all of the stuff into one of the urals, and drove back to the base. When I got back, the "Move Here" waypoint changed to "Hold," and the mission continued. Why didn't it end?

In the chopper, you can turn manual fire on in the action list. In the tank, you can move to the gunner's seat without getting out.

First, move toward the direction of the hospital. After you emerge from the forest, you should spot a group of 4 enemies. Kill them, and go take the G36 that one of them was carrying. Turn around and move to the left a bit. You should spot another group of 3 soldiers. Kill them, face the forest, tell your men to go prone, and wait. Set the time to 4x to make this part go faster. After a while, a large group of soldiers will walk by you. Kill them all, and move on toward the hospital. This is much easier than fighting them in the forest. As you near the hospital, you'll see a few soldiers by a fire and a M113 next to them. Order your AT soldier to take out the M113 while you kill the soldiers. A few more soldiers will come from the left of the hospital. Once they're all dead, move to the hospital and order your men into the Jeep. Just drive on to the waypoint then.