I think those big mission (Ural, NATO, Heli landing ) inside city, jungle kinda hard for us. It take 45 minute of me and my friend to complete that mission ( dead and have to run to that mission many time ). 25-35 AI with good gun, OP accuracy ( auto headshot, 1 hit kill ), can't shoot them from long distance because of terrain and very very hard to fight with those AI in close range. I know admin want the mission harder so player would group together to do those mission but it is very difficult.
P/s : sorry for my bad english