I am getting mixed signals here, you say they will get a habit of rushing and running away?
Running away from a battle isn't a bad thing if you know you are losing, it's no good to sacrifice your life for nothing.
Mhm. It usually applies to rushing/chasing single enemy (very often a bait or scout) that in most cases leads to death of the attacker. Also trying to fight without support with group of enemies by windows or doors.
As for running away... no it's not ok to run away if the rest of your team is still fighting. If in situation when 8 of you face 10 you decide that it's lost and start running away it's 7 vs 10, than 2 more will see you running = 5 vs 10 so enemy will just run over your teammates now just for you to have a chance to escape. That's not the best teamwork example wouldn't you say? That's the running away I was referring to. Same goes for hiding. If in 10 vs 10 open space fight there will be 3 people in one team that after first shots will decide to take cover, heal, regen ap than it's 7 vs 10 again.
No the AI is way too foolish for that, all they do is rush up to your face and shoot. Only tactic you learn is luring.
Sure, if you lure 1 npc, kill it with few friends, lure another one then it does not sound interesting at all.
You see only npc running forward and luring but what more do you need?
If lured well you can train making lines to share fov (field of view) for windows, enemies passing corner so that when one person see enemy you all can shot at him, not only half of people standing in line.
Make line up, lure as many npc as you can without dying and you can practice a lot of things: focusing fire (also choosing primary targets very fast), helping friends in need (learn to know when it's better to give first aid to somebody or provide covering fire/eliminate attacker) and many more, really.
You have a chance to learn how move in group (always somebody with high perception in front, bursters behind him so that they don't have to run 20 more hexes (possibly under enemy line) just to go in front of all snipers running first), take position when you spotted enemy (to avoid heavy burster deploying at back of your team or everyone standing in front of burster line), cutting fov while running.
Even standing npc can be of a good use. You know where npc is "on GO! we run 4 hex right, make a line up, shot and go back, 3, 2, 1, GO!" see how it goes and repeat. Same goes for making lines with same fov in windows.
Learn to rush corners. Very important, not many teams does it good or remember to do it the right way during fight.
As you can see there is a lot to do even without shooting, all you need is just few people, map and some free time. Thinking that if you get to shoot 10k bullets in training room will make you better fighter is wrong