i’m only a a warrant officer i want to get to captain quite fast
my friends are eclipes and higher and iso want to just be adverage.
Play. And never stop playing 
No seriously tho, there are not any specific ways to level up faster than normal. Focusing on commendations is a good strategy since you get that nice leevel-up Cr bonus. Aside from that, you should just play as much as you can.
Ive had Halo Reach since launch and played it for about a year straight. If you want to spend a lot of time on Reach and actually play with people
(Id imagine the servers have little to none people by now) I suggest waiting until a Halo Reach Remastered edition comes out. Im a Hero and the games been out for over 4 years now, Granted about a year and a half after playing I stopped and played MW3 but I came back after that for a while.
With the release of Reach for games with gold or whatever thats called, the population rose above the Xbox 360 servers for Halo 4. Its on average between 8000 - 19000 players, depending on the time.
If you want to level fast, I recommend just playing with your friends and having fun! There is no point in grinding a game you want to enjoy, especially when ranks mean nothing! Play and have fun!
Alternatively there are codes which you can use on Halo Waypoint which will give you a bonus 100,000 credits if all are accessed I believe. That should give you a little boost towards your goal.
Play longer game types, like BTB or Invasion and then just complete the daily and weekly challenges too!
Im low, but I got Colonel on my other prof. in about 4 months from Playing Whenever i had time.
Just play alot
.
I’m a Noble and it took me about 1 or 2 years to pull it off.
Honestly, I recommend just playing the game but Firefight matchmaking for (some reason) gives me more credits than actual multiplayer (But that is probably because it lasts much longer than MP games).
My favorite modes are BTB and Multi-team, I honestly don’t play much else.
> 2533274895457745;8:
> I’m a Noble and it took me about 1 or 2 years to pull it off.
>
> Honestly, I recommend just playing the game but Firefight matchmaking for (some reason) gives me more credits than actual multiplayer (But that is probably because it lasts much longer than MP games).
>
> My favorite modes are BTB and Multi-team, I honestly don’t play much else.
It doesnt really give you more credits after a certain point. The time it takes to finish Firefight is much longer so yes Per Game Credits will be higher but you can complete matchmaking games quicker and get around the same Credit amount in the same time.
So to anwser your question just play what ever you like and enjoy. Just dont boost on Grifball. Only losers do that XD
The credit cap for a day is 200000 Cr (I’m pretty sure it is, but it could be higher now.)
Each game gets you 2000 - 3000 on average, with bad games getting you 1000 and better ones getting you 4000 - 5000.
Using averages, you have to play about 100 games in a day to get to that credit cap, which you likely wont do.
Hypothetically, if you reached the credit cap every day, it would take you 100 days to get to Inheritor. (and then you can reset your timezone to reset the credit cap)
That’s 10000 games of MP when using averages. It will more likely take you longer than 100 days but less games, because you will get more than 2000Cr in most games.
EDIT: I forgot to account for challenges, they will help you with credits obviously.
grifball gives you a lot of credits per game also, especially when you or your team holds the ball to the last second for all five rounds
Firefight, lots and lots of firefight
Simply put, you don’t. Just keep playing basically. If you have other people that live with you, encourage them to play halo reach on your profile. The more time spent playing the better.
When I want decent credits, I usually do Firefight, Grifball, or challenges if they’re quick. Haven’t played since I lost XBL last year, however.
Just keep playing, and you’ll get there!
Just grind, but keep in mind the levels mean nothing.
cheating haha doing the target locater in the campaign
I would ether play score attack or grifball.
I just go on the ion sword base get the targetlocator and just restar my checkpoint its fun 
Just get 3 other friends and go spawntrap in Grifball and you get too much dough to count.
Juega mas de 4 horas diarias Firefight en Matchmaking.