The current situation for switching out weapons from your inventory is just BAD. In a quick mission you can clunk through locked in with whatever choices you started with even of you prefer something else at different points. The problem is with the nightfall strikes, the Raid, and even just longer missions and strikes on harder difficulties with a lot of modifiers. Switching between special weapons for elemental advantages or cqc vs ranged combat shouldn't be as difficult as it is and dangerous in certain missions considering you can't see and have to wait on the inventory to load, which takes forever during busy moments. On top of all that I still take an ammo penalty in PvE??? Are you kidding me? I can't go from sniper to fusion rifle or use my invective after some much needed sniping during the raid? Can't switch primaries easily either even if there isn't a penalty for that. There needs to be a quick and easy way to cycle through your inventory (maybe hold the down button to bring it up.. No need to sit during missions.. and hit triangle to cycle heavy, square for special, x for primary.. Something simple like that) and penalties need to go, at the very least in the upper level missions and nightfall/raid. Ammo is scarce as is in those situations and you can empty full clips into mini bosses and they shrug it off. Then modifiers like "juggler" mean you just run around with no ammo for a specific weapon type for a while and don't even THINK about switching.