Sniper is a very unique roll even in airsoft. I am +1 to thundercactus don't start playing with a sniper rifle. you will soon get pissed at being hit and having not much you can do about it...
Cabellas sells the Aftermath Kracken for like said 200.00 get that.. have some fun, save up
a decent gun say a TM brand VSR10 in Canada from ASC will probably cost you $400-600 then if it is not already you will need to do some upgrades...
you can play stock and that is fine but getting less range and less accuracy will put you at the mercy of the AEG's
upgraded you will be able to give someone the love Tap from further away..