1. Regarding controls, with 3 weapon slots, how do select the desired weapon? 2. I haven't seen anything regarding skill trees so how does leveling your abilities work? Do you earn a point to put into an ability each time you level or some other method? 3. Can you swap which focus is equipped at any time as if it is an item? 4. Is there a limit of items or weight that you can carry at one time? 5. Do random enemies drop loot like in Borderlands or do you only earn loot after achieving an objective?