The worst one so far is during the fight at the security area when you gotta defend Kenson as she hacks prison security.
Basically, if I kill the enemy waves too quickly, no new waves come, which basically hangs the mission. The first time it happened, I closed the gate shutter with one guy still behind it. The next few times, I killed the enemy wave before / soon after they left their elevators...
Eventually what I had to do to pass the sequence was basically to play... very passively. I would literally sit in the middle of the level and wait for enemies to come near and fire a few clips before engaging them, which was really unenjoyable for me.

I know a lot of you guys like to play ME2 aggressively as well. Did any of you run into this problem as well? If so, any tips for playing this sequence dynamically, yet still progressing?
Edited by Locutus_of_BORG, 31 March 2011 - 04:43 PM.