LdoN Mob out of Level

[xandros]

Did a Guk LdoN (South Ro) with a group of 5 today. Levelrange was 4x 37 and one 36 when requesting.
We got a 57 Kill mission (Guk C, The Ancient Aqueducts). Mission went normal until we got a red con "a Forlorn Darta Soldier" that hit my tank for close to 300 max.
All other mobs hit for the usual (max hit way under 100) that you can expect in a 35 dungeon. Druid track showed 5 of those red cons total.
We had to kill two more of these to get our kills done.
Not sure what Level this mob had, but he definitely was way too hard for a mid 30 LdoN.