Back2Fronts is an extensive mod that will overhaul your Call of Duty 2 game to a next level. This mod brings more variety, intensity, realism and battle-like experience. Try new weapons, fight new enemies, fulfil new missions and explore new options. Mod is SP and MP friendly (although primary part is SP).
All bolt-action snipers have new anims and one small change - the rechamber motion is transfered into aiming through scope which makes it more realistic but also harder to aim.
note the motion of the reticle when aiming and rechambering at the same time. also the bullets are animated during rechamber and reload.