Board Thread:Questions and Answers/@comment-23371555-20150902203820/@comment-3418306-20150903063831

Despite going non-lethal stealth, I still kept pointedly powerful munitions in my inventory, which came in handy for the boss fights. Personally, I used the Linebacker Grenade Launcher which actually made this quite easy. Granted, the only way you'd have it at that point of the game is if you have the Explosive Mission Pack DLC that comes with that extra mission, but meh...