OK Brink. Is terrible. No questions, it's terrible. If you're playing offline bot matches I hope you enjoy doing all capture types on your own, spending the majority of each match simple standing in control points while it takes forever to go down because you are the only one there as the A.I is too dumb to ever even try and take it.
The reason for playing the original PS1 MGS is purely because the remake is so different. The HD remakes of 2 and 3 are pretty good representations of what those games are, the differences are too minor to worry about in my opinion.