Hi all, want to ask several question on behalf of my fren. I never own any macbook b4, hence cannot give details comment. appreciate your advise here

1. Macbook US set warranty can claim in Malaysia Apple store. is it true? no hassle if anything happen? seems the price diff kind huge.

2. Macbook pro 15 can play dota 2 max settings? this only game he played.

3. worth to buy extended warranty?