Was running a terror mission in a country that was in full on panic. Squad had deployed into a building and were mostly not on overwatch due to distance moved after taking out a Chrysallid that had parked itself next to the Assault trooper with Close and Personal (makes your first attack within 4 tiles not cost an action).
Cue two groups of three Chrysallids running into the room, in addition to the one I know for sure is hanging out on the balcony above. Five make for my troops on being spotted, but fall just short on their movement, while one runs into the shadows behind some stairs. Then the one on the balcony runs over and hops down, directly into the line of fire of my Sniper, who was in overwatch, had the Sentinel skill (gets two shots on overwatch), and was armed with a plasma sniper rifle. One shot, one kill. Immediately thereafter, another Chrysallid that I didn't know about follows an identical path, taking even more damage from the plasma rifle. I cheer and go to take my turn.
First, my MEC trooper fires a grenade at the pack of four Chrysallids that had bunched up. Not enough to kill any of them, but puts them all at 3 HP. Then I realize that not only do I have two Assault troopers with Close and Personal on the mission, one's already close enough to get the free shot and has a 100% hit chance. One down. Move the other Assault trooper up, take another 100% shot. Two down. Move the first guy closer and finish his turn with another 100% shot. Three down. Last guy takes one more shot without moving - only a 97% chance of hitting, but he doesn't let that slow him down. Pack's demolished, but I know there's that one behind the stairs. Move my remaining Assault trooper (yup, I brought three) around the corner and take an easy 100% shot to finish it off as well.
Two on their turn and five on my turn left me feeling really pumped. Finished up that mission with only two out of eighteen civilians killed by the aliens and not a single injury sustained. All of Asia was taken from the brink of panic and returned to a stable point.
XCom: Enemy Within with the Second Wave option Training Roulette enabled