Absolutely not.
Let’s recap the logic:
The keyword "steamunlocked medal of honor warfighter" is a trap set by nostalgia. The game was a commercial failure for a reason. It is not worth the hard drive space, let alone the cybersecurity risk.
We are not endorsing piracy, but we believe in harm reduction. If you choose to ignore the warnings and search for "steamunlocked medal of honor warfighter", follow this strict protocol:
Expected Outcome: Even with these steps, expect crashes. The SteamUnlocked version of Warfighter is notorious for crashing at the "Going Loud" mission (the boat sequence). Save yourself the frustration.
Because the game is delisted digitally, your only legal option is to buy a used physical DVD copy from eBay, Amazon Marketplace, or a local thrift store. Prices range from $5 to $15.
Warning: The physical disc requires an Origin key. That key will install the game via EA App (formerly Origin). However, the multiplayer servers are still shutdown. You will be able to play the single-player campaign legally and safely.