Every class no matter what role you're playing has access to all 3 ammo types, so long as you go out on the map and get them. I bet you'll see/hear call outs like "mid-structure has heavy ammo!" or "sniper peak has special ammo". So if you're a warlock and you happen to have passive/team support abilities, that doesn't mean you can't have a badass rocket launcher or sniper rifle or anything that has a high DPS. I'm interested to see the difference between classes and how everyone will use them and in what ways, especially with the grenade types and movement abilities. We've seen teleportation, we know there is an area of damage effect attached to multiple different things like weapons and supers, perhaps there might be a grenade with that effect. I think it'd be interesting to see say a Titan use his movement ability right off the bat to get to the heavy ammo quicker (since he is a slower class), throw a grenade with area damage over time to cut off the other team's route, then when he grabs the heavy/special ammo he activates his bubble shield type super ability. Then strategizes who to take out from there, especially if the opposing team is just sitting outside his bubble, and he has a rocket launcher or something at his finger tips. I'm definitely thinking of being a Titan and perhaps using a strategy like that. More so, when caught off-guard I might throw up a bubble shield and pull out my shotgun, or if I were a Hunter and caught off guard I would teleport forward and hopefully out of damage range activate my ghost gun to get the upper hand, if Warlock float up in the air do a 180 and unleash my Nova bomb.

Yep, but if anyone can pull this off its bungie. I just don't want a sci fi COD 1 shot/ spam hip fire = win game. Which I think bungie understands, given the debacle that was Halo 4 (nice effort 343), and the lack of any FPS which really is not a cod clone.