Today I had such a frustrating experience with the game (It wasn't the games fault)
So, basically everyone on my team but me was dead, and there was a ton of Geth troopers, a few hunters, and a prime left.
Since I'm a really low level, I could do little damage and I lost health and biotic barrier easily (I'm a Vanguard)
So, I had to run around the map, occasionally shooting at all of these enemies, slowly and painfully wearing down their numbers, until there was just a prime left. It's down to one chunk of armour, I turn to blast it away with my SMG, when I FUCKING DISCONNECT.
I rarely get pissed in video games, but this was enough to drive me insane, It was the last bloody wave as well, I was SO close to winning this one.
On a sort of related not, does the game save the XP, credits, and Galactic Readiness you gained in a game if you disconnect/leave the game?