Hey, I am trying to get the last 10 achievements I need to finish Halo: Reach and I need some advice/help. Are the achievements map locked meaning they have to be on certain maps? Some seem to be but other are not. I know I have gotten last person alive and infected more than three players in one life for the anniversary achievement but it was on a Noble map pack map.
Any help for an old gamer who has been out of the loop for a long time would be appreciated.
Which Achievements do you need? All the Anniversary Achievements are specific to the DLC maps.
All of the ones from Defiant, Ate all the Chips, and three from the Anniversary playlist.
Can you list them out for me? I can help you a bit more with all the achievements listed.
I am missing:
Cross-Mappin’
You Ate All the Chips
Candy from a Baby
Don’t Touch That
Paper Beats Rock
All Alone
Emergency Room
Stick it to the Man
Bounty Hunter
Just those nine.
> I am missing:
>
> Cross-Mappin’
> You Ate All the Chips
>
> Candy from a Baby
>
> Don’t Touch That
> Paper Beats Rock
>
> All Alone
>
> Emergency Room
>
> Stick it to the Man
> Bounty Hunter
>
>
> Just those nine.
Cross-Mappin’ - Play BTB and shoot across the large maps and get it accidentally. <- My experience. 
You Ate All the Chips - Find Stockpile in Team Objective or Team SWAT, preferably with a full team of 8 or 10, and work together to collect all the flags.
Candy From A Baby - You can do this in custom games once you have the right gametype. Once you play a game of Stockpile in MM, save the game type and go into a custom game and have a buddy “capture” flags while you go steal them.
Paper Beats Rock - Has to be on a Defiant map, try Squad DLC for this one.
All Alone - Has to be on a Defiant map as well so Uplink/Condemned in Living Dead. Best bet is to full party boost for it. Find 11 people with the Defiant maps and go search in LD until it pops up.
Emergency Room - Play in Anniversary FFA until a zombie game type shows up.
Stick it to the Man - Play Anniversary Classic and remember that when you get stuck, you have to rush the person after dealing absolutely ZERO damage to them via bullets or anything. You are essentially turning yourself into a suicide bomber.
Bounty Hunter - The only playlist you cannot get a skullamanjaro in is Multi Team. You can find it in Team Objective or Anniversary FFA.
Good luck!