343I, why no achievement?

Games Other Halo
1

I was just in a matchmade 1 flag game, and we didn’t let the enemy team even touch the flag. Still no achievement. =C Is this a glitch or something?

This was the game, I am disappointed.

2

There isn’t a achievement for Anniversary with flag besides.
Anniversary: Killed the flag carrier with a Plasma Grenade in a matchmade game.
You need a defiant map for what your going for.
Defiant achievements only work on Defiant maps.
Anniversary achievements only work on Anniversary maps.

3

> There isn’t a achievement for Anniversary with flag besides.
> Anniversary: Killed the flag carrier with a Plasma Grenade in a matchmade game.
> You need a defiant map for what your going for.
> Defiant achievements only work on Defiant maps.
> Anniversary achievements only work on Anniversary maps.

That wasn’t the case for the other ones, why now?

4

Weird