Personal weapons can take out tank but not the unarmoured chinnok???
The agent could just run away as he is on earth & could steal a car? Chinook isn't the only way home but its a fast way there.
I like different missions, cause after a while doing the same thing does get boring. I'm sure you could have exit points where it's safe to pickup the survivors.
I really do hope the missions get a little more variations in the beta & alpha