Max Payne 3
67 Achievements
Air Ace
Get 2 kills in a single Shootdodge in the Departure Lounge.
How to unlock the Air Ace achievement in Max Payne 3 - Definitive Guide
It goes without saying that if you have two enemies in your line of fire during a shootdodge, try and kill both of them.
But you can actually get the achievement even if you do not successfully kill two enemies during the shootdodge. If you remain prone after shootdodging you can still get the achievement by killing enemies while laying down.
The achievement popped for me as I got up a few seconds after killing enemy number two.
Pick Team Deathmatch on Departure Lounge and all meet up near one of the escalators.
Whoever is going for the achievement should stand at the top of the escalator and 2-4 members of the opposing team should stand at the bottom. Press RB and forward on the left stick to do a shootdodge down the escalator and shoot your RPG at the enemies standing at the bottom.
If you don't have the RPG, kill someone who does and then pick it up from their dead body.
It may take a couple of tries before you get the achievement but keep trying and it should unlock.
The way I got this was by playing Payne Killer mode.
I was with 3 others so me and 2 of them took turns by Becoming Max and triggering shoot dodge from an upper height; (Inside the departure lounge where that battle takes place in story) meaning that the best way to accumulate this is to have 2 person(s) stand/wait on the lower level of the terminal, then triggering shoot dodge as Max from a stairway, or escalator (whichever you prefer) from the upper level of the lounge.
This one isn't too bad and can easily be done without boosting, either catch 2 enemies battling it out on each other and go for the double shootdodge kill, if you only kill one of them and you're are still alive on the ground then remain prone and wait for another enemy to come by and then kill them. This will also unlock the achievement, you can strafe left and right to make little movement in aid of hiding or finding an enemy, just don't get up before your 2nd kill.
If you wish to boost this, you will need 8 players in order to fill the lobby up and lock out any random players form joining, then the player who's getting the achievement should either make their way on the 2nd floor or just at the top of the elevator in the main terminal, have either an RPG equipped or a duel wield of your choice, have 2 players stand below/in front of you and go for the kills.