Utilize modern warfare gear to gain a tactical advantage:

Some users report levels loading slowly or Windows Aero themes being disabled during play. Ensuring the latest patches are installed typically resolves these PCGamingWiki .

If you need to run the game in windowed mode, you can often create or edit an autoexec.cfg file in the game directory and add the line "Windowed" "1" (or "2" for specific versions). System Requirements (PC)