任务：5-OVER THE FENCE
主线任务：Extract the captured engineer
营救工程师(基地北侧地下牢狱)
次要任务：Fulton extracts the engineer through the hole in the facility’s basement ceiling
让气球从地牢的天花板破洞口穿过营救工程师(可能会失败记得位置对对准)
次要任务：Extract the prisoner plotting to escape from the Wakh Sind Barracks
营救掏出监狱的俘虏(可能要多救几次，我救得第2次算我成功的)
次要任务：Extracte the four wheel drive patrolling between outposts
用气球获取一辆四轮吉普车(前期科技不足气球无法回收)
次要任务：Secure the blueprint at Wakh Sind Barracks
