Bolt-action rifles like the Moisin-Nagant M1891 and Mauser 98-K require the player to jack the bolt after every shot, which the character does automatically, but it takes time. And the team has integrated realistic animation for cycling that bolt, too! Although some of us might disagree with the time it takes to work that action… it’s not machine-gun fast, just as you’d expect in real war.
You can’t carry six rifles and a truckload of ammo, either. Load limits are as they would be in real life. Stamina is present. You run around and jump around a lot and your character will get tired. No “bunny-hopping” in RO, either.
Lots of infantry weapons abound in RO. Pistols from the Luger and P-38 to the 1911 Colt and the Tokarev-33. The SVT-40 rifle has a realistic loading sequence where you can see the soldier release the bolt forward after you slap a magazine in it!