Be wary of "highly compressed" 100MB downloads. The actual game is roughly 26GB to 50GB (dual-layer Blu-ray). Anything significantly smaller is likely a virus.
Some popular torrent sites include The Pirate Bay, 1337x, and RARBG. Be cautious and choose a site that has a good reputation. metal gear solid 4 pc download torrent 21 hot
Until the official port arrives, the only way to play MGS4 on PC is through the RPCS3 Emulator . While the game was historically difficult to run, it is now considered playable from start to finish on modern hardware. The Elusive Dream: Metal Gear Solid 4 PC