Hell Let Loose Vietnam Keybindings — Complete Key List & Recommended Rebinds

Hell Let Loose: Vietnam inherits the franchise's dense control scheme — three voice channels, a tactical map, marking, leaning, freelook, and an entire pilot binding set for the new Huey helicopters — and adds a few Vietnam-specific twists like the NVA tunnel interaction and patrol boat driver controls. The defaults are mostly well-chosen; this guide lists every binding, flags the ones worth rebinding, and shows the mouse settings that make jungle rifle fights manageable.

Here's what you'll learn:

• The complete default keybinding tables (common, infantry, vehicles, pilot)
• Push-to-talk keys and the Toggle Radio Channels setting
• The five rebinds worth making immediately
• Recommended mouse sensitivity for keyboard and mouse
• Pilot-specific keys for flying the Huey

Official resources: Steam store page · Official site · IGN game page

Common Keybindings (Default)

Infantry Keybindings (Default)

Voice Chat and Push to Talk: The Three Radios

Vietnam has three voice channels, and getting them onto thumb buttons transforms how you play:

• V — Proximity Talk: everyone nearby hears you.
• C — Unit Radio: your squad (officer + members).
• X — Leadership Radio: commanders, squad leaders, tank and helicopter leads.

Push to talk is the default behavior, but there's a catch worth knowing: the game has a "Toggle Radio Channels" option under Keyboard & Mouse. With it On (which the developers set as the default for the playtest builds), pressing the key toggles the channel open until you press it again — safer against voice distortion, but it leaves your mic hot. Set it Off for classic hold-to-talk where the mic transmits only while you hold the key.

Per the official Crossplay Playtest announcement: "Keyboard & Mouse -> Toggle Radio Channels: Default has been changed from Off to On" during the playtest to minimize voice distortion — and the launch update confirmed the robotic-voice issue was largely resolved for Command and Squad chat. You can flip the toggle either way in the launch build.

The Five Rebinds Worth Making Immediately

1. Crouch Ctrl → C, Prone Z → X. Ctrl sits below the palm and slows your strafing; C/X put crouch and prone on easy reach so you drop into foliage instantly when shots crack past.
2. Steady Aim Shift → Caps Lock or MB4. Vietnam adds heavy weapon sway when aiming down sights for long periods (see the vs guide for how it differs from WWII HLL). Steady aim on a thumb button lets you hold breath while keeping Shift free for sprint.
3. Radios onto mouse buttons (above) — V/C on MB4/MB5.
4. Equipment Wheel → Mouse Button 5 if your mouse has the buttons to spare; the wheel is a quick swap between grenades, smoke and tools.
5. Tank Smoke Screen Space → F — prevents accidentally deploying smoke when you meant handbrake.

Pilot Keybindings (Helicopter)

The Huey has its own binding set, and it's the most important new control scheme in the game:

Recommended Mouse Sensitivity for Keyboard and Mouse

Low sensitivity wins in Vietnam — engagements happen at range through foliage, and "every unnecessary mouse movement costs you":

Pair these with a 400–800 DPI mouse and a comfortable in-game sens rather than high DPI + high sens. The scoped value at 7 keeps a 200-meter rifle target steady; ADS at 10 handles the 50–150m jungle band. Many competitive players also run a FOV between 90 and 100 for situational awareness — see the best settings guide for the full graphics side.

Frequently Asked Questions

What are the default keybindings in Hell Let Loose: Vietnam?

Movement WASD, fire/aim LMB/RMB, reload R, jump Space, crouch Ctrl, prone Z, sprint Shift, lean Q/E, tactical map M, marking Middle Mouse, talk V, unit radio C, leadership radio X, scoreboard Tab, menu P. Full tables are above.

How do I use push to talk in Hell Let Loose: Vietnam?

Press V for proximity, C for unit radio, X for leadership. Under Keyboard & Mouse, the "Toggle Radio Channels" option sets press-to-toggle (On) or hold-to-talk (Off). Rebinding these to mouse thumb buttons is the single best quality-of-life change.

What keys control the helicopter in Hell Let Loose: Vietnam?

W/S pitch, Left/Right Mouse Button yaw, A/D roll, Space increase collective, Ctrl reduce collective, E helicopter supply drop, F recon flare (recommended), Left Shift auto-level.

What is the best sensitivity for keyboard and mouse in Hell Let Loose: Vietnam?

Look 15, Free Look 20, ADS 10, Scoped 7, Smooth Mouse Off, Crouch Toggle On — with a 400–800 DPI mouse. Low, deliberate sensitivity wins jungle rifle fights.

Related Guides

• Hell Let Loose: Vietnam Controller Settings — Best Gamepad Setup
• Hell Let Loose: Vietnam Best Audio Settings — Hear Footsteps & Gunfire
• Hell Let Loose: Vietnam Helicopter Pilot Guide — Fly, Land & Survive
• Hell Let Loose: Vietnam Best Settings — Graphics & FPS
• Hell Let Loose: Vietnam How to Play — Modes, Objectives & First Deploy
• Hell Let Loose: Vietnam Beginners Guide — First Matches, Roles & Survival

Last updated: August 14, 2026