I have been thinking of getting this game, and i have a few questions about it. 1. Is it free roam? 2. My Laptop plays Just Cause 2 with little jump, so will i be able to play it? 3. Should i get the previous ones? 3.5 If i get the previous, will they do question 1 and 2. If the STALKER community can help me out here, that be helpful.