Very easy to do on lowest difficulty. The first 3 BAT pods act as a tutorial and don’t seem to count toward your total. As your running through the level just ignore all enemies and plow through the locked doors when possible(some rooms you do have to fight all enemies). The boss room has 3 pods and should be easy to avoid shooting them.
Something to note, the side mission is to break all the BAT pods, so make sure on one play through you break all of them.