Here are a list of bugs I have encountered during my play, which has been primarily co-op with one other person (both hosting and joining another game).
Equipment Wheel: On two separate occasions, I was disallowed from switching equipment using the equipment wheel. The first instance, I could bring up the weapon wheel and hover over any desired item, but trying to select the item failed. The second instance, I could bring up the weapon wheel and briefly hover over any desired item, but the game would force the selection cursor back to the equipped item. The first instance persisted after death and only corrected on reload of the game. The second instance was fixed after death.
Reviving: Five out of five times my co-op squad mate attempted to revive me and failed. On his screen the revive worked, but I stayed on the ground. One my screen it was as if he never revived me.
Vehicles:
- Once, when getting in a boat situated near a dock, my character got locked into an animation that caused him to swim in circles. I suppose the character was trying to "line up" with the boat so the proper "climbing onto boat" animation could be played, but he constantly failed. I could not break out of the animation. Fast travel is disabled during interactions like this. About 15 or 20 seconds later, just before I was about to close the game, the animation ended.
- Animations for getting in and out of vehicles do not play for other players while in co-op. We can see our own characters animations, but not each others. (This bug also occurs with opening item crates.)
Audio: After dying and before respawning or being revived, I used the "Quit to Desktop" option. After the game closed, the "bleeding out" muffled music and sound effect continued. I couldn't find any Ghost Recon process running in the Task Manager. Restarting the computer stopped the audio.
Sync Shot: Tagging an enemy for sync shot causes the game to stutter horribly. Untagging the enemy fixes the issue.
Non-bug suggestions
Respawn Position: Two times out of perhaps fifteen repawns, I was placed mere meters from a group of enemies. Playing on Extreme, I was of course promptly killed. This is no fun for anyone. If this had happened once, I would call it a fluke, but it happened twice in fifteen respawns. There absolutely needs to be a minimum safe distance between any respawn location and enemies.