MilSim differs from the sports of airsoft or paintball - though all rely on tactics and marksmanship, MilSim has a focus on authenticity to real-world military doctrines. There are often fireteams with designated roles, such as simulated combat medics and support gunners.
MilSim stands out from games like airsoft or paintball because it prioritizes realism in its depiction of military tactics. Teams typically feature players with specific roles, including medical personnel and gunner specialists.