Glitch or cheat??

Been running v200 since its release. Also run a custom chatlogger/playerjoin log parsed to our forums for easy review. Noted in one log players discussing another player gaining 50 levels per shot on a monster. I backup rpg ini file 2-3 times per week. Best as I can tell, this player went from level 166 to 310 on one map. I'm not running any anticheats on the server. Funny thing is that the player who benefited from it said nothing in chat....I mean if it happened to me, I'd at least type "wtf??". So is there a legitimate glitch that could cause this or is there an invasion cheat out there that could do this?

My leveling chart is as follows:

InfiniteReqEXPOp=1
InfiniteReqEXPValue=3
Levels=0
Levels=15
Levels=20
Levels=25
Levels=30
Levels=35
Levels=40
Levels=45
Levels=50
Levels=55
Levels=60
Levels=65
Levels=70
Levels=75
Levels=80
Levels=85
Levels=90
Levels=95
Levels=100
Levels=105
Levels=110
Levels=115
Levels=120
Levels=125
Levels=130
Levels=135
Levels=140
Levels=145
Levels=150

Maybe he was an Adrenaline Master using a Vorp Gun +22?

(I use that method all the time, and I level up crazzzy)

I've seen that sort of thing happen in PvP when they kill a significantly higher player.

Also, 150xp really isn't that much to level up... that's a level for every 10 titans you kill.

Well, that table is deceiving since it's a percentage increase. At the 160 level for instance, it takes roughly 40,000 xp to level.

In the mean time, I might have discovered the problem...I had just added a new monster pack...MetalandGhost monster pack which contains metal, ghost and gold versions of the satore monsters. On the gold wave, a seemingly invulnerable skaarj occasionally is generated so each hit with a flak results in 10 levels gained!!! Once removed, no more problems. Must be something in the monsterpack code rather than rpg or druids.

It probably awards an astronomical amount of Adrenaline (being aimed at RPG mages), which, if I recall correctly, is equivalent to the total amount of EXP gained.