Yeah, I have a 41 in Lone Wolves. I plan on getting my Brigadier in the future. I haven't played lone wolves in a while. And I get angry when I lose in Lone Wolves due to playing on Anvil.
The more EXP you have the harder it is going to get to rank up. I would try to get it as fast as you can.
Not necessarily if you are a 45 in slayer and have played 2,000 games in it. You can still, if you have never played a game of doubles go from level 1 to 50 in 24 games with a booster or in like 47 games without. so, yeah.
I'm a Major, Skill 36. I think I have around 227 XP... i don't play matchmaking much anymore though...
Me I'm a major with enough skill to be commander i have a high skill 37 in team slayer i just want be brig though