When I play by myself and got stomped by a party group, I do not leave, I stay even If my team loses 0-10, I gain experience and collect my points, there is no excuse to abandon a game affecting the other team and leaving the match unplayable. There were a few things that were wrong in BFI, specially in Supremacy and Walker assault game modes when some players were capable of abandon the team to avoid damaging their K/D or because there were not doing good or to avoid going "negative", again the K/D issue. However, we dealt with it and moved on. In BFII, we no longer have this issue and I love that.