Transformers: War for Cybertron

You need to reach a combined class level of 75 to get this achievement. As long as your total levels between all 4 classes add up to 75. i added the xp leveling chart below.


1 - 500 XP
2 - 1,500 XP (+1000)
3 - 3,000 XP (+1500)
4 - 5,000 XP (+2000)
5 - 7,500 XP (+2500)
6 - 11,000 XP (+3500)
7 - 15,500 XP (+4500)
8 - 21,000 XP (+5500)
9 - 27,500 XP (+6500)
10 - 35,000 XP (+7500)
11 - 44,000 XP (+9000)
12 - 54,500 XP (+10500)
13 - 66,500 XP (+12000)
14 - 80,000 XP (+13500)
15 - 95,000 XP (+15000)
16 - 112,000 XP (+17000)
17 - 131,000 XP (+19000)
18 - 152,000 XP (+21000)
19 - 175,000 XP (+23000)
20 - 200,000 XP (+25000)
21 - 227,500 XP (+27500)
22 - 257,500 XP (+30000)
23 - 290,000 XP (+32500)
24 - 325,000 XP (+35000)
25 - 362,500 XP (+37500)


The best Gametype to gain xp is Conquest since you get 150 xp for capturing each power node.

on average on a good game you can get 4 to 6k xp

since july 2011 theres permanent 5x XP so this can me done much faster

This achievement is easier if you level parts of all the different classes instead of focusing on just one.
Remember its just total level of 75

Also of course you should try to play extra during XP events which are actually fairly common for this game