What the Open Beta Overview Reveals About Hell Let Loose: Vietnam

Following the recent Steam open beta, Expression Games has shared a detailed breakdown of player data and telemetry. Hosted by Game Director Paul Rustchynsky, the inaugural episode of the Command Post developer broadcast series highlights how the studio plans to tune the game’s core asymmetrical elements before the updated release date on August 13, 2026.

With the launch delayed to August, the development team is focusing heavily on refining performance and balance based on the weekend playtest, which reportedly reached a peak of approximately 24,000 concurrent players.

Analyzing the Thanh Hoa Bridge Combat Loop

During the test, players fought across the Thanh Hoa Bridge map, a setting featuring dense tropical forests, muddy rivers, and rural villages. This environment serves as a core test bed for the game’s new riverine mechanics, forcing players to navigate narrow channels using armed patrol boats while dodging infantry fire from the banks.

The map supports both Warfare and Offensive modes, emphasizing territorial control. In Warfare, squads must coordinate to capture consecutive sectors, while Offensive places one faction in a desperate defensive position against an advancing assault. This layout highlights the stark geographical contrasts of the conflict, demanding different tactics than the open fields of the Western Front in the original WWII game. For a broader look at the launch environments, check our maps guide.

Asymmetric Matchups: Helicopters vs. Tunnels

The developer overview focused heavily on how the opposing factions operate. The United States Armed Forces rely on high-tech assets and air superiority. US squads can deploy using helicopter transport, allowing rapid insertion behind enemy lines or quick redeployment to contested sectors. However, flying requires precise coordination and leaves pilots vulnerable to heavy ground fire.

Conversely, the North Vietnamese forces utilize stealth and terrain familiarity. Their tunnel network acts as a counterweight to US air mobility. North Vietnamese players can build hidden tunnels to create custom spawn points, enabling flanking maneuvers and quick reinforcements without relying on traditional garrisons. The beta highlighted a clear gameplay loop: US forces scanning the tree line for tunnel entrances while North Vietnamese squads listen for incoming rotor blades to prep their defenses.

Post-Beta Polish and Balance Focus

According to the developer broadcast, the extra development time leading up to August will target several areas highlighted by telemetry and community feedback:

• Improving overall performance and frame rate stability under Unreal Engine 5.
• Tweaking weapon handling, recoil, and ballistic properties for era-specific weapons.
• Balancing faction-specific abilities, particularly adjusting how quickly tunnels can be rebuilt once destroyed.
• Refining collision and pathing for both land vehicles and river patrol boats.

This delay aims to ensure that when the game launches on PC, PlayStation 5, and Xbox Series X|S, the asymmetric mechanics feel balanced rather than frustrating.