HITMAN 3 - End of an Era SA (
Tranq gun is to lure Imogen's bodyguard outside so she's alone in that room and can be wallbanged ez, as for Hush, if you shoot near his guard at that specific timing, he'll enter lockdown and start running alone, giving you a brief chance to kill him unnoticed if you get lucky. (in this case I got extremely lucky that even though he fell down, he made noise at one side of the dumpster then bounced to the other HUEHEUHEUHEUE)