Nothing. Even on veteran. It's pointless.
You unlock the museum, an extra level displaying all of the levels off the campaign.
You need to level and complete challenges
S.s.d.d.
Level 70 on your 10th prestige.
That level has none.
If you're talking about the museum level from Modern Warfare 2, then probably not. That was a one time thing.
Sadly no.
There isn't one in there.
The fourth level in Call of Duty Modern Warfare is No Russian (which can be skipped.)
You unlock the museum, an extra level displaying all of the levels off the campaign.
Level 42
yes it will be coming out late may early Junewith two new mapsclan system updatedand a better museum type level
Well its not called act for but there is an extra kind of level called museum mode which allows you to run around a museum with static enenys which you can kill with a range of guns.
All your guns, attachments, equipment, perks, level, classes, and challenges reset.
nothing
The Lieutenant Rank is at Level 34
You unlock it at level 36.