After playing with 2 friends so far I have encountered the following situations.
Player A- After we connect to each other, we move forward and play a battle. After the battle is over, if we are victorious, it gives the host(me) a victory message while giving the guest the defeat message.
After playing this battle when trying to launch a second battle I as Host receive a fatal UE error. CTD.
A CTD can also occur while not even launching a battle after having played 1 battle. It has happened very often and most times forces us the replay the last fight we finished.
In order to alleviate this I as the host must quick save asap after a battle, close the game and relaunch from desktop. We are then able to play another battle, where I will have to quick save and quite over and over.
Another situation is when playing a battle.. moving to a second battle afterwards, after victory or defeat the game remains on the loading screen and never goes back to the campaign map, making us Alt F4 to close the game(though it's not frozen according to task manager) and reload the game losing the previous battle and forcing us to play it again.
So far playing 1 mission, and restarting my game as host seems to work.
Player B- a few of the same issues as already mentioned.
One issue encountered with player B is he constantly gets disconnected after a battle. When he joins back in, or I invite him back in, when we launch the next battle, or not long after joining I get a UE fatal error.
If the guest disconnects from the host while looking at the end of battle results, or if in the middle of dialog, or given a tab that tells you the upgrades to renown, fleet capacity, leadership etc. The Host is stuck and cannot X the tab out thus is stuck and forced to Alt F4. Losing all progress previously made.
Same situation as the paragraph above; tried having him reconnect to me during this issue and the game throws us back into the end of battle results screen where he has no option to click anything and neither can I. Again being stuck and forced to Alt F4.
Player B, during battle is unable to see any reinforcements be it allied or enemy. Doesnt seen the cannon fire, lance fire etc from these ships either. I have tried giving the ships to him and pulling it back to me, does not work. He also can't control any of the ships even if clicking the ship icon on the right side of the screen. The ship is also not represented on the mini map.
Player B is unable to make any purchases for fleets, and changing names of ships is not saved.
Other than this, We are enjoying the coop experience. Love the way we split the fleet up in game.
Player A had the door bell ring, and I took command of his ships during that small time. Once he was back I gave them back. Worked well.
The inability to see reinforcements is crippling in larger games.