The sixth Repeatable Militia Side Quest you can get is given to you by Jora the Trader who can be found in The Survival Shop in Minoc.
Jora asks you to slay some Ettins. So head out and kill some!
The best place to hunt for Ettins are on the lower floors of the Despise Dungeon in Felucca.
Now that you have killed the 100 ettins, collect your 3000 Gold and 5400 Experience Points daily!