If you prefer keeping your gaming library centralized on Valve's platform, installing through Steam is a straightforward process. Step 1: Open Steam and Access Your Library
Call of Duty HQ requires extra temporary space during installation to unpack compressed files. Ensure you have roughly 20-30 GB of headroom beyond the stated game size. how to install call of duty modern warfare 3 on pc
: Allow the in-game menu to fully complete its "On-Demand Texture Streaming" and "Shader Optimization" process (visible in the top-left corner of the main menu) before entering a live match. Interrupting this causes massive stuttering during gameplay. If you prefer keeping your gaming library centralized
Do not use AlterWare if you only care about the single-player campaign. Use it strictly for the online experience. : Allow the in-game menu to fully complete
Click Start Install . Keep the Battle.net launcher open until the download finishes. Method 2: Installing via Steam