I loved MG1, hated MG2, they totally fucked up the game when 2 came out for the ps1 or 2 that was I think. Judged on the movie for MG4, they've improved some, but where they fokked up in 2 was the gameplay. Less stealth, more bullshitty tasks, etc.
I hope they did good on the gameplay for 4. I skipped 3, so I don't know how they done from 2 to 3.
But the trailer looks awesome, very curious to the game now, I really hope they'll bring out the game for pc this year somewhere
As I said , I really loved MG1, one of the best multiplayer games I ever played.