Colonel Gurnst. Kachirho Great Tree, level 1 (-457 -124) -- reward, 5000 credits
Kill 15 wookiee resistance members (commandos, freedom fighters, forest stalkers), then return to the Colonel to receive your bounty. A good place to find them is the collection of huts on the river, northwest of the starport (-570 23 /way -573 133). This quest is repeatable.
This quest takes about 5 mins max when you exit the great tree head left and then follow that to the bridge (do not vross the bridge go down under it and head to the wookie fort.