Rust vs. MW2 Game Modes: They're Different Games

Rust and Call of Duty: Modern Warfare 2 (MW2) are completely different games.

• Rust: Survival multiplayer — gather, craft, build, survive players/environment.
• MW2: FPS with competitive multiplayer modes and campaign.

You cannot play Rust inside MW2.

Common MW2 Multiplayer Modes

• Team Deathmatch
• Domination (capture 3 points)
• Search & Destroy (bomb plant/defuse)
• Kill Confirmed (collect dog tags)
• Hardpoint (control moving zone)

Clarify which game you're asking about for specific mode details.