Valor is an interesting concept: reward the people with the most points.
Pros: People who do the most damage get reductions in round penalties.
Cons: People end up ramboing to wrack up points, and end up whacking their teammates like retards.
There was a system that rewarded team cohesion before; all people in an area gained money and xp for sticking together; if you weren't working together you didn't get money.
Pros: people ended up sticking together. everyone made money, though not as good as now.
Cons: people who's role did not lend to sticking in a mob (archers, horse archers, cavalry), ended up getting the short end of the stick.
My proposal:
Give all people who stay in a group a full multiplier more than what they currently have, up to a maximum of 5. this also eliminates the paltry x1 sum which everyone hates. This will encourage people to stay together more, increase the overall money pool for losers (thereby reducing the penalties that require some to use less expensive gear), and reduce the overall rage factor. At the same time, the x5 capped team will rambo more, which ultimately will give an edge to the loosing team for staying together.
exp: a team loses, but all teammates that stay together are x2 instead of x1.
exp2: a team is on a winning streak at an x4, stay together making x5, but win again. everyone gains an x5, together or not.
Pros: Reduces ramboing, ragefactor on loosing a round, makes the game slightly easier on high cost builds or for new players with little money, as well as increases team cohesion.
Cons: no more valor, meaning every loss is a loss indeed, makes xp and gold gain quicker for the losers/lower end players thereby potentially causing an imbalance, and with overall LOWER the amount of xp and money players on the high end make, making them more likely to use less expensive gear. (may be a pro)
Apart from that, there is one problem which remains, and that is team attacks and team kills. Each reported Team attack should cost the offender 100 gold. That will make people think twice about it, along with the kicking system it will really discourage it altogether.