you want to edit max level cap or just set max level?
if you just want to set max level (depend on your max level cap at server and client), just search query fox max level and gm pt (tbl_general)
but if you want to update lvl cap, you must add new line at server side (4 class mastery limit, Exp.dat and Grade.dat + 4 animus file) and client side (character.edf). Then you must edit pvp point and animus level at zoneserver. Last, edit level, pt and animus eff at rf_online.bin.
*for pvp point you should edit pvpcashpoint.ini too. make sure premium and non premium edit well. Change lvlcount and startlvl to your new max lvl sync with zoneserver.
Sorry for my bad english.