SO
here's the plan for the explosives. have any suggestions? shoot, dammit!
TIER E1A
the Propane Tank
the Jerry Can
the Oxygen Tank
the Match (this is the best idea ever)
TIER E1B
the Hand Grenade (explodes on a timer, hilariously high direct-hit damage)
the Conc(ussion) Grenade
the Stick Grenade (explodes on contact, bigger blast.)
TIER E2A
the Multi Bottle Rocket (all hail)
the Cluster Grenade (all hail... some more)
the Sticky Grenade (it has a suction cup! can we panic now?)
the Fuel Tank (imagine the fuel, jerry, and oxygen tanks combined. and then, duck)
TIER E2B
the LAW/RPG (go go rocket propelled grenade)
the Grenade Launcher (throws a grenade FAR further then the normal stick grenade: otherwise very similar)