Here is my top 5 most frustrating situations playing this game. I know most of you can agree, but feel free to add your experiences.
#5) Being 10k from a cv and the auto puffy ack gives you a pilot wound.
#4) Flying bombing missions, assigning targets..and right after your drop, you see someone missed their target and hit yours
#3) You wanna take a base ninja style by shelling the town with the cruiser, then half way into it, someone insists on waking that Field up
#2) that building that pops just as your troops are running
And the #1 spot has to be:
Finally got a good fight, 800...600..400 getting ready to shoot...then a huge text window pops onto your screen. "987684766294 wishes to join you".