In this thread I am giving my honest thought and tips.
First of all, The game is fun when playing Coop, singleplayer is alright but not really worth it.
The Ai teammates are a bit dumb and the command giving doesn't work smooth. You have to stand still giving commands. And giving commands takes a long time, it takes away the
fast pace of the game when in combat. Multiplayer has some issues, my friends teleport and glitch out, when you are in missions some players will be kicked out and joining back is a pain.
Whenever tagging supplies each player has to individually tag the supplies. It's like a parade scouting through the bases. It takes away the immersion and it delays the mission. I hope to see a feature whenever one player tags it the rest gets those supplies as well. There a still some bugs reloading during sprinting. And shooting while walking hasn't got a smooth transition. When you tap fire a pistol the character just shocks and the animation just looks awful.
At last I want to say the game looks great and it's good fun. The guns feel awesome, setting up tactics feels great when accomplished. I hope many of those issues can be fixed before release.

Keep up the good work