I can see why the non-finns got frustrated by the setup. Like Krusty said he was getting into a disadvantage fight without even knowing why.
At the same time north we were two yaks escorting a lone Boston in NOE recon mission, and it was only when we popped up over target deep in enemy country that the enemy started looking for us. Boston got home alive and I engaged the enemy who was below me. I got two kills, both of which I believe the no icons greatly contributed to, as one started evasive actions too late and the other not at all.
At that time I could have rtb'ed but decieded to stay around for a bit of fight. Multiple enemies arrived and now the icon settings got ME killed as I failed to see a 109(?) before he was already opening fire.
Then I was told to go in IL-2 to take out a vehicle base. There were only 2 IL-2's and two escorts but those managed to tie up the enemy so me and Sasmox could unhindered take out the V-base. Sasmox got killed on the way home, but I slipped away and landed safely.
Now, I at least had an idea what the missions were, although WHY that exact base needed recon and the other to be taken out was unclear. Knowing the mission makes it easier to accept getting outnumbered one place, since you know you are helping out another place.
If I hadn't I would probably have left frustrated as well.