Shooting paintballs that have pig gelatine and performing salaah with paintball stains on one's clothing

Q: 

1. Is it permissible to shoot paintballs, now that there is evidence to show that the paintballs are made from swine?
Will the masala differ according to how much of pig gelatine is used in the paintball? 

2. Can a person perform salaah if he has these paintball stains on his clothes?

Will a person be a musaafir or muqeem when staying in Makkah and Aziziyyah?

Q: Insha Allah I have intention for Hajj. So we leave on the 28th of April from JHB. 

We'll be 10 days in Makkah

Then 12 days in Azzizia

Then 6 days of Hajj 

Then another 6 days in Azzizia. 

So what I want know is where am I musaafir in this whole trip and where am I muqeem? Do I regard Makkah and Azzizia as 1 or what?