No wonder it kept chucking me into the IMC group.. I had actually finished the Militia campaign, not the IMC one lol.. d'oh
lol. I wondered but didn't want to say.
Yeah, it's weird that, about my hours played. I said I'd been playing for ten hours because I'd recently got an xp boost for one of the "time keeps slipping away" challenges for having played 10.00 hours.
I guess it's 10 hours playing the game and another 10 hours doing other stuff? (Training, fannying around with loadouts/burncards, sat in lobbies, and going "afk"?) Doesn't sound right, that, though. I'm sure I spend a lot of time inactive with the game turned on, but ten hours?
Anyways, I added a few hours last night, and eventually got my prestige. That last level took a long time (getting from 49 to 50 - fortunately you don't have to get to 50 and then do a load more afterwards like you do in COD). Took a long time to get from 49 to 50 partly because it requires a ridiculous amount of xp (about 80k I think) and partly because you've earned all the bonus xp from challenges for your favourite weapons etc. by the time you get to level 49, so you don't get as many xp boosts or burn cards - unless you switch to a loadout you're unfamiliar with. (I'm no sniper, so I brought out a couple of Amped Sniper Rifle burn cards toward the end, which helped - get to a vantage point and snipe a few easy targets to get a couple of challenges done.)
Got there in the end, though.
Apparently you earn xp a bit faster after each prestige - so I'll earn it at 110% now, and the next prestige earns it even faster, and so on - so that'll speed things up a little.
You do, however, need to fulfil certain criteria to prestige. The first time you only need to get to level 50. The second you need to get to level fifty and to have killed loads of people and npcs using the shotty and the 40mm cannon. Each successive prestige requires more difficult criteria to have been fulfilled.
Details
here