In multiplayer, dial up modems work fairly well unless you are playing in a laggy server. Then you will have problems with gameplay. I recently went cable. Now , I'm fragging people left and right. Lag is minimal.
Graphics are good, but starting to show it's age.
Sound is good. The sounds of slugs from the rail gun slaming into the legs of and Platinum Guard Executioner, the powerful blast from a blast cannon taking of the shield generator of an Knight's Apocalypse, or the unmistakable sounds of the quantum gun is something to behold. MechWarrior 3 was pretty fun, but it was more like an arcade action game. This game realistically simulates being in a giant robot, and it feels so much more realistic than MechWarrior 3. I know that simulation fans must have been getting tired of constantly blowing things up in the same old tanks, helicopters, and planes.