@blkarmphoenix Only the campaign, very little PvP, but I was thinking of the Plasma Railgun as well. Problem is that people will complain about that having no bullet drop, unless the charging mechanism is meant to increase damage, power and reduce bullet drop at the cost of fire rate and ammo amount. But I envisioned this mechanic coming in the form of an energy pistol, taking inspiration from the Doom pistol and from the non-linear fusion rifles in Destiny.
As for the exploding canisters, who knows... Maybe there's another legend coming that would use something like this or maybe the deployable mine ticks will come in as a new item.
@DarthValtrex the kind of popcorn for watching blockbusters at the cinema