Plutonium

ChosenUndead Maybe just maybe because it's a big security risk. Or did you already forget the remote code execution vulnerability? It's the same thing with MW3 (2011). I tried to play it before I knew about Plutonium and the very first match a hacker hijacked the lobby and tried to send an infected packet and execute remote code but thankfully Bitdefender blocked it and closed the whole game before it could do anything. Plutonium doesn't have this issue so it's a real shame that the developers didn't bother to add MW1 and MW2. Every Call of Duty from Call of Duty 4 Modern Warfare all the way up to Black Ops 3 are affected by the same vulnerability so it's a huge security risk to try and play the original games online in public lobbies.