I was playing Warhammer Online with my Witch Elf the other night. I was doing the Tier 1 Elf scenario Khaine's Embrace.
Khaine's Embrace is pretty neat. There are two standards. If your team captures both standards, a horn sounds, and there is a giant explosion, killing everyone in a large radius around the standards. Then your team gets 75 points, and the standards reset. I like the map, though possibly mostly for the horn sound and explosion graphics.
Anyways, it's early in the match, Order has their standards, but we're pressing them hard. All of a sudden, our standard gets captured, and we fall behind. It turns out not a single person is defending, so a lone Order player was able to sneak by and cap.
So I start defending. It's terribly boring, but I do kill several Order players who try the sneak again. Our flag is never captured again, and we win handily.
The problem is that I ended up getting the lowest renown and rewards from that fight. And that has really soured me on WAR. I'll be honest, I basically won that map for my side. The zerg didn't accomplish anything, but they got to rack up kills and renown.
This is the problem with systems that try and track contribution, and hand out rewards based on contribution. Sometimes contribution is very hard to track. Defense in particular is hard to judge. Not to mention that it's far more boring than being on the attack with the front line.
Edit: Not to mention that you can apparently leave your Scenario group and not share any Renown/XP with the other players. Ahh, Mythic, did you not learn anything from WoW?