Do u want war till 1000frags? If death loss wil be reduce to 50% sum of lost lvl will amount to 500lvl (1000frags*0,5lvl). For example ine the battle would fight 40 ppls so amount of lost lvl for each player would amount 12lvls (500/40). I think that it's too much if u have 250+ lvl. 80% would be great, if not - 65% ;p