All Xeno would do is just get a certain # of kills and then retreat back to his base. During his support video, he had juice during overtime and could have juiced on their ball (he also had a lot of money so juice chaining was possible). Unless he was scared to mess up his score, he could have kamikazied and won the game.
I typically don't approve of k/d obsessed assaults, but if Xeno were kicking the crap out someone and lost, you gotta lay a little blame on his team. Yeah, I'm all about objective-based play, but being the best guy on your team doesnt necessarily obligate you to ruin a good performance on the outside chance that you can do a little damage to their moneyball.