1.) The player sees an enemy (monster 1) in the right room, and tries to sneakily shoot it through the window
2.) It turns out that the monster was bait, and a monster hiding in the left room (monster 2) comes to attack him.
3.) The player turns to fight monster 2, but monster 2 flees into cover in the left room.
4.) While the player is turning, monster 1 runs out to attack him, and when the player turns to shoot monster 1, monster 1 runs into the left room.
5.) As both monsters are now in the left room, they realize they're screwed if they stay there, so monster 1 runs past the player and into the right room to draw the player's aim to the right.
6.) When the player turns to the right, monster 2 attacks the player in the back.
7.) The monsters attempt the same strategy again, but monster 2 gets caught and killed.
8.) Monster 1 circles behind the player to attack, but realizes that it is caught as it lacks a second monster to attack the player and the player has just entered slow-mo mode, so it suicide jumps the player to do some damage before it dies.  This is a good strategy as the game lacks regenerating health.