Combat Rifle

The Combat Rifle (or SCAR-L) is an automatic weapon that has a capacity of 60 rounds per magazine. Unlike the other assault rifles, it can switch between a three-round burst or automatic mode. The firing mode can be chosen by the player at anytime. It is suspected that this will be a tier 2 weapon.

It seems that Valve has change the reloading mechanics once the user empties the whole magazine causing this weapon to have a slower reload time. You now have to cock the bolt back, then detach the magazine, then put another in, and hit the bolt catch (which releases the bolt forward and you may also hit the forward assist if necessary). If the bolt doesn't automatically lock back, then you eject the magazine, insert a new one, and rack the charging handle back.

Behind the Scenes
In early footage, the Combat Rifle used the Assault Rifle's animations.