Joining a MilSim unit may cause:
Acute PTSD
Temporary Deafness
Extreme Atrophy
Sleep Deprivation
Blader Clenching
Loss of Hair
Incrased Blood Preassure
Bonding with comrades
FUN

Not Joining a MilSim Unit or be with a group of friends will result in
Being forced to join public servers that are more or less the same. The beauty that is offered lies within the modding community and the mission editor.

Other than that the game's multiplayer design is interesting, the client's FPS is synced to the Server's FPS. There are overlays on certain servers that provide the server's and client's FPS, dont even try to use your quad Titan SLI or Quad Devil 13 crossfire to squeeze extra frames because with a bootcamped macbook pro can get the same frames at 1680x1050 with a few tweaks.

My main con is that the in game voice is really sketchy when there are more than 20 people in the server especially on global, side and group depeneding on the amount of people in the group

Case in point, join a MilSim unit, become a man