1-If a ranged combat damage delt by (goblen commando) to character can the character use any aromor card that reduce combat damage to defend like (wooden sheild) or is there special armor card to reduce this special combat damage which is ranged combat damage?
2- if i have a boon card mention ( a character at your location ) can i use it on my character?
1. Ranged Combat damage is still Combat damage, so you can use your wooden shield or any other armor. There is one armor in a later AP that reduces extra damage against Ranged Combat damage, but otherwise there is no difference from normal Combat damage.
2. Yes, you are a character at your location. (But you are not another character at your location - there are some cards that specify you must target another character at your location).