1) Does Ilthilmar arrows (link) http://deckbox.org/whi/Ilthilmar%20Arrows happen before the oposing units attack is finished? Lets say I have a 2 hitpoint card wich I attack with with, he takes of two tokens and deal two damage to that unit, will it be destroyed immediately or does it get to attack aswell, then destroyed?

2) Also if I get asigned indirect damage, while having a church of sigmar ( http://deckbox.org/whi/Church%20of%20Sigmar ) and place it on one of my units, does my oponent have to pay 1 extra resource per unit?

1) Yes, if you want to. You can use the Arrows' action during any of the action windows before combat damage gets assigned. If a unit is destroyed before that step, it won't deal (or receive) combat damage. See the detailed timing structure in the FAQ.

2) No. The unit is not being targeted by your opponent, after all. It's not even being targeted by you when you assign indirect damage to it, not that it matters. The Church only affects effects that explicitly target the unit ("deal X damage to target unit", "corrupt target unit", etc.).

Thanks for replying!

also, playing against my friend yesterday he played http://deckbox.org/whi/Loremaster%20of%20Hoeth Loremaster of Hoeth, dealing indirect damage to http://deckbox.org/whi/Carnosaur%20Rider Carnosaur rider. He ment that the savage would happen two times since he dealt first one of the damage, then the other damage to his Carnasour rider from the Loremaster of Hoeth…. This cannot be done right? It have to be from two different card effects to deal savage two times?

You are correct.