[Saint]

Seeing as they want this to be a fast paced action game, they probably do what most do and give it an arcade feel.

IE limit the effects of re-coil, movement and leading on most gun to improve game speed, while keeping it on others to an extent.

So yes they'll probably leave leading on slow firing projectiles simple because it takes a while to get to the target. Rapid fire guns will probably be almost insta hit.

They will have "bullets" per say since the unreal engine itself uses them, and simply changing the speed they travel will enforce leading to be required by the user with certain weapons, especially with increased range. So close up the sniper rifle will require virtually no leading at all but as you get further away it will require more.

But aside from extreme ranged the only leading i think you'll need is in regards to your own lag with the server, ie you'll have to shoot where the player actually is rather than where you see them.

On a side not ei believe even CS had "bullets" since i've had a few eye for an eye kills where i've shot someone else at the same time as them shooting me, and if bullets didnt exist in game i cant see how this would be possible, unless we both pressed the button at exactely the same time, also factoring in the lag between the server and our clients.