halo 3 scoring acheivements?

[sk8terdude123]

which type of scoring do i put on either free for all or team to complete a scoring acheivement

 

[arkantosdt]

The scoring needs to be on free for all, unless you are playing co-op. It is best to play on a high difficulty with gold skulls activated to increase the multiplyer.

 

[g.wren]

yh has to be free for all but people used to do them in the double xp weekend things but i think they stopped it but yh it has to be free for all

 

[SubScorpion]

ffa. Team won't work.