keep doin matchmaking.
Grifball is a Double EXP Weekend playlist on Halo 3 matchmaking. It resembles football, but with bombs, swords, and Gravity Hammers! Grifball can be played in Halo 3's online multiplayer whenever it is featured as a Double EXP Weekend playlist.
you need to have 100 exp and 10 skill level to become a lieutennant (officer) on halo 3
As far as I know, you can't because their isn't any online Option in Halo 3 ODST; Campaign Disk, BUT if you were to use the Multiplayer disk, you can get online/matchmaking, and play online, and get anywhere between 1 and 3 exp for games.
just by playing online matches and earning exp. I think you need to get 600exp. to become a general.
You get XP by winning matches in matchmaking. If you lose the match, then you lose XP. Simple.
You win games to earn EXP.
When you win or come in the top 3 of a multi player game that is free for all online you get 1 exp point. If your team wins online in a team match you get 1 exp point. If you win or come in the top 3 ( depending if it is team or free for all ) on a double exp game you get 2 exp. -double exp games only are playable on Thursday through Friday.
Go to Halocharts.com to see
if you lose too much on a ranked playlist in matchmaking you can lose exp
100 exp. and a skill of at least 10
yes if the exp goes under the exp that you needed to go up a grade u will be degraded
yes you can