the game will have weapon colisions like EFT?

[Volk]

i love that mechanic, the length of a weapon should affect maneuverability

[BENN-EE5]

Hopefully not. WW3 is not a "realism shooter" and the weapon collision in EFT is borderline stupid. It often takes direct control of the player away and it collides in situations where it should not. In EFT you will often fight controls and not the enemy.