Ok guys this might seem a little radical but here it is. I played eq and I got to the level cap after about a year of play. I played wow and got to the level cap after about 6 months of play.

My idea really is to have a level cap that cant be achieved. A level cap set at 40,000 would make for years of gameplay and a great way to define apersons experience. Any thoughts?

I don't know if levels would work at all in this game to be honest, I would rather see a specialisation tree for each class. Something you work towards and then choose after you have reached a certain xp point. If anyone played Star Wars Galaxies before they changed the game will know what I mean.
Example. If I play as a tactical marine then after a certain amount of xp or kills, maybe I can choose to have a combi weapon. Further on, bionics to increase health or toughness. Maybe a power weapon or grenades. Maybe a flamer ?
40000 lvls, I think we would need to be real Astartes to live long enough to reach that cap

No levels here, I think, only unlocking the loadout options.

If by any chance there are levels.

It should be meaningless rank up only, just showing experience.

That's a fantastic idea, especially if these rewards were race specific. Example, kill 1000 marines and you get to hang a space marine helmet off your belt. Kill enough Orks and wear a string of their teeth.

To my knowledge there are no "levels"

no meaningless ranks. viewable player stats, aesthetic rewards, and strikeforce related titles.

Yeah I can see that in a game where you can get killed by a new player almost as easily as a veteran wbere levels might seem to be unimportant. In reality other than predetermined equipment unlocks leves done mean hardly anythin in a game like cod or battlefield. But for a mmo where hopefully a company can keep a large playerbase in their game for many years then a virtual unlimited level system should make sense.

If there are no levels then this is all kind of a moot point anyways.