Just to add few things.
Good
Iron sight no cross hair in this game
Authentic weapons each performs as should with good sound effects.
Damage model It takes only one bullet to kill (depends on cal, distance, etc)
Human like movements no bunny happin' counter strike sh%t here,
Maps most beautiful maps Ive seen in any mod
TeamKill Makes it more challenging when you have to ID enemy by uniform. Sever that I play allows 3 TKs. If other player forgives you for TK then you can kill more then 3 (affects score, officer -6 points, -4 MG, -2 solder)
Balance each side gets certain amount of unit types, so entire server is not full of snipers and MG.
Mission objective each map has its objectives so this is not just a death match.
Bad
Servers - few good servers, (only server I play is (CiA))
Tanks damage model sucks but sometimes are fun to just mess around.
Bugs couple bugs are still in the game but they are not show stoppers.