Well its impossible to beat a side that is stacked by a clan. They will most likely be on team speak or something similar and can easily co-ordinate attacks that a random team cant. even 1 squad made up of clannies in ts is enough to turn a game around completely.
Not impossible, but definitely a challenge. Its not like the other team didn't have a group of clan mates though! I think the other team had 6 odd SSG members.
The bottom line with BF3 is that the team that uses teamwork and goes for objectives is often the the team that wins.
My KDR isn't particularly good, its about 1.1, but when I started it was 0.6 odd. So definitely an improvement! I am definitely an objective based player. I don't look for kills, I look to capture the objectives and then defend them. Don't blame the clan... Blame a lack of teamwork...