1. Extract and load attached repro mission "17904_guard_WP_repeat.Stratis.zip" in mission editor.
2. Note the player is a subordinate member of AI led group with a guard waypoint. Your group does not have any AT weapons and is unable to harm the tank.
3. Preview Mission.
4. Observe AI leader announce awareness of tank.
5. Observe AI leader order "Fire at that tank".
6. Wait about 20 seconds.
7. Observe AI leader order "Fire at that tank".
8. Observe AI leader order "Fire at that tank".
9. Observe AI leader order "Fire at that tank".
10. etc, etc....