Games like Frontline Inferno

Polygon is a massively multiplayer, tactical first-person shooter set in an open world warfare scene, allowing up to 32 players in large-scale battles. Team up with friends in intense PvP matches, with a customizable weapon arsenal based on real prototypes. Experience teamplay with up to 16 players, utilizing various weapons and skills to lead your team to victory.

Insurgency is a tactical first-person shooter that focuses on team-based gameplay. Players must work together to complete objectives and eliminate the enemy team in a variety of maps and modes. With a realistic damage model and no HUD, Insurgency demands strategic planning and communication for success.

"Day of Infamy" is a hardcore, teamwork-focused multiplayer game set in World War II. It offers nine player classes and seven PvP modes, as well as three cooperative modes against AI. With 14 levels based on historical battles and over 60 weapons, the game emphasizes lethal gunplay and objectives. Proximity VOIP and equippable radio backpacks allow for immersive communication. The Deluxe Edition includes a 28-minute soundtrack and three unit items.

"BattleBit Remastered is a chaotic, massively multiplayer online first-person shooter, supporting up to 254 players with high tickrate performance and optimized for high frames-per-second gameplay. It features destructible environments, 45+ weapons, vehicular combat, and dynamic day and night gameplay across multiple strategic maps. The game also includes proximity-based voice chat, clan support, and encourages player replayability."

Engage in intense modern firefights in the definitive tactical co-op FPS

Sector's Edge is a fast-paced destructive voxel-based first person shooter in which two teams of 8 fight for zone domination across various planets.

Military Conflict: Vietnam is a tactical shooter game set during the Vietnam War. The game features a variety of weapons and vehicles from the era, and allows players to engage in large-scale battles in a variety of environments. Players can choose to fight on either the US or Viet Cong side, and must use strategy and teamwork to complete objectives and emerge victorious.

"Boundary is a tactical multiplayer shooter where players, as Astroperators, engage in zero-gravity combat in space installations. The game offers personalized space suits and weaponry, promising intense 3D battles. However, it has been noted for being very grinding, having bugs, and requiring patience."

"Contractors" is a multiplayer virtual reality shooter game with both PvP and co-op modes, featuring customizable loadouts, realistic weapon handling, and an immersive IK system. The game also offers single-player challenges against AI, mod support for community-created content, and a social hub area with activities. Its newest update improves UGC mod support for custom loadouts and game modes.

Verdun is a multiplayer FPS game set during World War I, focusing on the brutal trench warfare of the Western Front. It offers historically accurate weapons, uniforms, and gore, with maps based on real battlefields. The dynamic Frontlines game mode features 64-player battles as teams take turns attacking and defending trenches. Experience realistic WWI combat with skill-based weaponry and bayonet charges.