User bedaiwi from
http://www.ps3trophies.org posted a very good list, which informs us how much exp you need to get to the centairn level. So as he says: "here is a list of Crysis 2 ranks and unlocks in multiplayer
Lvl 1 (Cadet I ): 0 XP – Team Instant Action / Instant Action / Assault Class
Lvl 2 (Cadet II) – 500 XP, Class, Dog Tag
Lvl 3 (Cadet III) – 1,500 XP, Class, weapon
Lvl 4 (Recruit I) – 3,000 XP, Class, Dog Tag
Lvl 5 (Recruit II) – 5,000 XP, Custom Class 1, Dog Tag, Weapon, Armor, Stealth, Power
Lvl 6 (Recruit III) – 6,800 XP, Crash Site Gametype, Dog Tag
Lvl 7 (Private I) – 10,300 XP, Weapon
Lvl 8 (Private II) – 15,300 XP, Module Assessment, Dog Tag
Lvl 9 (Private III) – 20,200 XP, Weapon, Dog Tag
Lvl 10 (Trooper I) – 25,900 XP, Custom Class 2, Dog Tag
Lvl 11 (Trooper II) – 32,500 XP, Stealth Modules, Dog Tag
Lvl 12 (Trooper III) – 40,000 XP, onslaught game type , Dog Tag
Lvl 13 (Private First Class I) – 48,500 XP, Weapon, Dog Tag
Lvl 14 (Private First Class II) – 58,000 XP, Power Modules, Dog Tag
Lvl 15 (Private First Class III) – 68,600 XP, Weapon, Dog Tag
Lvl 16 (Specialist I) – 80,300 XP, Custom Class 3, Dog Tag
Lvl 17 (Specialist II) – 93,200 XP, weapon , Dog Tag
Lvl 18 (Specialist III) – 107,300 XP, Dog Tag
Lvl 19 (Ranger I) – 122,600 XP, Weapon, Dog Tag
Lvl 20 (Ranger II) – 139,200 XP, Custom Class 4, Dog Tag
Lvl 21 (Ranger III) – 157,100 XP, Weapon, K-Volt, Marshall, JAW, AY69
Lvl 22 (Guard I) – 176,400 XP, Dog Tag
Lvl 23 (Guard II) – 190,000 XP, Support Bonus Assessment, Dog Tag
Lvl 24 (Guard III) – 219,300 XP, Weapon, Dog Tag
Lvl 25 (Operative I) – 243,000 XP, Custom Class 5
Lvl 26 (Operative II) – 268,300 XP
Lvl 27 (Operative III) – 295,200 XP , Weapon
Lvl 28 (Corporal I) – 323,800 XP , Dog Tag
Lvl 29 (Corporal II) – 354,100 XP , Weapon , Dog Tag
Lvl 30 (Corporal III) – 386,200 XP , Dog Tag
Lvl 31 (Sergeant I) – 420,100 XP , Weapon , Dog Tag
Lvl 32 (Sergeant II) – 455,900 XP , Dog Tag
Lvl 33 (Sergeant III) – 493,600 XP , Weapon , Dog Tag
Lvl 34 (Veteran I) – 533,300 XP , Dog Tag
Lvl 35 (Veteran II) – 575,000 XP , Dog Tag
Lvl 36 (Veteran III) – 618,700 XP , Dog Tag
Lvl 37 (Major I) – 664,500 XP , Weapon , Dog Tag
Lvl 38 (Major II) – 712,400 XP , Dog Tag
Lvl 39 (Major III) – 762,500 XP ,M20 14 GAUSS , X-43 MIKE , C4
Lvl 40 (Enforcer I) – 814,800 XP , Weapon , Dog Tag
Lvl 41 (Enforcer II) – 869,400 XP , Dog Tag
Lvl 42 (Enforcer III) – 926,300 XP , Dog Tag
Lvl 43 ( Colonel I) – 985,600 XP , Weapon , Dog Tag
Lvl 44 ( Colonel II ) – 1,047,300 XP , Dog Tag
Lvl 45 ( Colonel III ) – 1,111,500 XP , Weapon , Dog Tag
Lvl 46 ( General I ) – 1,178,200 XP , Dog Tag
Lvl 47 ( General II ) – 1,247,500 XP , Dog Tag
Lvl 48 ( General III ) – 1,319,400 XP , Dog Tag
Lvl 49 ( Group Commander ) – 1,394,000 XP , Dog Tag
Lvl 50 ( Force Commander ) – 1,471,300 XP , Dog Tag"
original post:
http://www.ps3trophies.org/forum/crysis-2/122366-crysis-2-ra...