For "portable" or repacked versions of the game, common causes include:
Switch the game to windowed mode before finishing the sniper mission. This often prevents the "DirectX Device Removed" error during the transition to the next cutscene. Lower Graphics Settings: Temporarily drop all graphics settings to before the mission ends. Disable Overlays: For "portable" or repacked versions of the game,
Crashes in after the sniper mission (specifically "Shore Leave") are often linked to save-file corruption or script triggers failing to load the subsequent level. To resolve this, you can manually edit your profile settings or use specific in-game workarounds to bypass the crash point. Top Fixes for the Mission Transition Crash Disable Overlays: Crashes in after the sniper mission
Here is a guide to fixing this crash.
If you are playing a pre-cracked or "portable" version of the game (where no installation is required), crashes at mission transitions are extremely common due to missing registry keys or compressed game assets. If you are playing a pre-cracked or "portable"