Marvel Avengers Battle for Earth
43 Achievements
1,000
12-15h
Closure
You finished the Campaign mode.
100
How to unlock the Closure achievement in Marvel Avengers Battle for Earth - Definitive Guide
There are 5 locations, with 8 fights each + 1 Finale level after you go through all of the previous 40 fights. Part 1 of the campaign is the first 4 fights out of each location, and Part 2 is the last 4 fights out of each location.
EDIT: It unlocked! I had made a backup save that had not yet completed the final showdown. I switched memory devices from the Extras menu. Then I fought this battle in co-op and a few seconds after the battle ended and the game saved the achievement unlocked.
Campaign mode is not very long at all; it consists of 41 total fights. There are five cities that contains eight battles each, with one of them having a ninth and final battle at the end.
Tips: Make sure you string special moves back to back for maximum effect. Try to dodge incoming attacks, and use your combo breaker if you're ever caught in your opponent's combo. Once you get the hang of playing, fights typically last 30 to 60 seconds.
Note: This achievement may be glitched, so before your last few fights, I highly recommend that you create an additional save on a separate memory device, like a flash drive. This is so you don’t have to complete the whole campaign over in case this doesn't unlock for you. Also nets you 40 UPlay points