Hey guys, I just finished downloading the game, and before I make my character, I have a few questions.

Well mainly 1 actually want to know about the classes.

I played alot of wow so maybe one of you can compare a class to a wow class or something.

I know Lancer is tank. Some kind of paladin, warrior, DK tank I aint sure.

Warrior, is it some kind of dps or tank?

Berserker and reaper I guess are dps but whats the difference between them.

Archer ... well it's an archer ..

Sorcerer seems like a mage type

Gunner I aint sure

And the 2 others seems like healers.

Correct or tell me more about those, ty!

Lancer is a soak-the-damage type of tank, using heavy armor.
Warrior is both dps and tank (think warrior in wow with def.stance and berserker.stance) and focused more on avoidance.
Berserker is a heavy dps:er using 2handed axes
Slayer is the same, using 2handed swords.
Reaper is basicly the rogue class. Using God of war-like chains.
Archer is archer.
Sorcs are mages
Gunner is a heavier version of archer.
Priest is more of a direct healer, whilst the other one focuses abit more on damage / summons.

Lancer: straight up definition of tank
Warrior: tank or medium dps (has 2 stances, can be either or. Can be a really solid tank; will be even better when they're buffed)
Berserker: Around the highest pve DPS. Will be able to tank in a future patch
Slayer: Very high dps, solid AOE. squishy.
Reaper: very high mobility, squishy, mid ranged.
Archer: ranged DPS
Sorcs: ranged DPS, less mobile than the others. Incredibly AOE oriented. Currently somewhat weak but will get nice buffs soon.
Gunner: ranged DPS. Many consider it crazy/broken strong. Has a ton of AOE.
Priest: Defensive healer
Mystic: Offensive healer. Fewer heals but more cc.

What server are you on? I'm on AV if you're there and have any other questions.

Tanking - Lancer is generally the go-to tank, warrior holds single target aggro better, and has a bit more of advanced mechanics as well as being able to swap to dps (only "hybrid" class).
DPS PvE - Gunner > Berserker > Slayer > Reaper/Warrior > Sorcerer > Archer
Generally, Priests have better healing, but mystics have more CC options, as well as a more "tempo" playstyle.

Simple explanation is nothing really feels like WoW or compares.

Tanks don't just soak damage, they have to actively avoid and block boss strikes. Healer throughput isn't high enough to cover the damage you'll take.

All DPS is forced to attack the back of the boss because you'll crit 3-4x harder. Also no casters exist, outside of sorc, which is dumpster level.

Healers have terrible throughput, you'll never run oom, and your job more or less is correcting mistakes your dps/tank makes, keeping DPS mana up, and keeping a debuff on the boss.