oh man .. am i really the onlyone that thinks this current multy-system is good as it is ? it is so easy and serves the purpose that i call it a genious strike in this game ...
... pls consider that each and every multy system will have their pros and cons .. and the more complicated the more exploitable and abusable it is !!! there will be only more problems if you try to implemented any of these complicated ideas ... including proximity based xp gain ! the problems you are talking about (ramboing/leeching w/e) is not the mechanics , its the players ! and player based problems should be dealt with at its source not with indirect mechanics changes ... leechers/teamhitters and also rambos can and should be made responsible on community base , its a community issue ! you can talk in chat , you can report to admin,m problem solved.
btw: we got really ambitous and good admins (that has to be said more often imo) who you can talk to , we got a high level discussions going on the forums (well also some troll threads but not as much as in other gamer forums) , we got popular and nice devs as that actually do care for the community and are closer to the playerbase than 99% of all other MMOs.
pls ask yourself what it is that you really want. and ask yourself what you really need, what this game and its community needs. if youre frustrated because your team didnt support you when you was alone fighting vs 5 guys ... then mb you did rambo a bit to much .. do not try to punish others for your own failures, thats not good man =/
NOW regarding the xp gain mechanics rewarding assists ; unless anyone shows me another simple(!) and genious approach to do proximity/assist based xp gain mechanics that does include playstyles like
"the lonely sniper" ala ArtemRUS ,
"the brave Flanker" ala Kinngrim
if there is shielders who do his job and suck damage for others ... will that be taken into account ? if there is a shieldwall getting hit by 100 arrows when they should be going for some rangers or make a passage through enemy lines ... will they get penalized?
and many other styles that will not benefit from proximity based xp gain
and many bad playstyles that will benefit from proximity based xp gain
i say there is no fair system that tries to map all the different playstyles possible and it will always be exploitable and abusable until you use an abstraction which the current approach does.
sorry for the Wall .. but i felt like it needed to be said .. and i could even continue with some more stuff but noone would ever read it