Anniversary "Emergency Room" impossible to ac

Is it now impossible to achieve Anniversary achievement “Emergency Room” because there is no infection on Anniversary playlist? I achieved the goal of this one in regular map and it didn’t count?

Emergency Room: Anniversary: Infected 3 players in a single round in a matchmade Infection game.

Solitary, Penance and Breakneck are the 3 Anniversary maps that are found in the Infection playlist. In order for these maps to have a chance of showing as voting options, everyone in the lobby NEEDS to have the Anniversary map pack. If just a single person doesn’t have it, then none of the Anniversary maps will show.

Same goes for the All Alone achievement for being the last surviving player in Infection on a Defiant map. The only Defiant map in the Infection playlist is Condemned, and its got even less chance of showing than the Anniversary maps.

what he said, the achievement does work though

I did the achievement on wrong map. I have been reading from internet how to get this one and it seems that I need to boost this one. Only option, if I don’t want to play Halo Reach for +100 hours, is boosting.

Gather a group of people that have all the DLC. I have all the DLC and am willing to help sometime.

This is what I’m talking about, 343.

Anytime you want to make the rest of these maps available to the small pop. that still plays this game, that’d be splendid

Please don’t revive old topics thanks