- Antlions and headcrabs that deal poison damage now use the HL2 behavior for poison (heal over time).
- Instant Restart: Loadout editing state for briefing is now cleared.
- Instant Restart: Chat is no longer closed during restart.
- Deselecting a marine in briefing now properly clears the tooltip.
- If rd_chatwipe is 0, chat history is no longer temporarily hidden when the mission starts.
- Added an official First Person challenge.
- Fixed first segment of rd_boss_bar being misaligned.
- View punch, poison blur, screen shake, and HUD damage indicators now work while spectating.
- The main HUD font no longer scales below 20px (960px tall resolution). At 720p, this is 33% larger, and at 800p (Steam Deck resolution) this is 20% larger.