I was going to post these MM1 weapon ideas on Skype, but I didn't see you there at the moment.
Bomb Man:
Proto - Cluster Bomb: Lob a bomb far away by holding down fire, then release fire for it to divide into smaller bombs that explode on contact with anything. If the big bomb isn't divided and it contacts something, it explodes for bigger, single target damage.
Bass - Bowling Bomb: fire a bomb that rolls across the ground and bounces off walls, but explodes upon making contact with enemies.
Roll - Surprise Bomb: spawn four bombs around Roll, which explode shortly after being set. Great for getting enemies off of you or your allies, but consumes a lot of ammo.
Guts Man:
Proto - Pebble Splinter: Proto Man jumps, then strikes the ground. Small rocks fly forward at great speed, and nearby enemies are stunned.
Bass - Guts Digger: rocks are dug rapidly and sent flying off into random directions around you in short distances. Like Roll's Surprise Bomb, this is great for getting multiple enemies off of you, though it consumes ammo fairly quickly and it makes the user hold still while being used.
Roll - Super Crusher: point at place and fire. A large rock will drop in that spot!
Cut Man:
QUACK QUACK QUACK :3
Unless you want something new instead of what Mike made.
Elec Man:
Proto - Rapid Thunder: fire a single shot of Thunder Beam forwards, but with greater ROF than normal Thunder Beam.
Bass - Electric Pinpoint: the old pinpoint thunder attack from CBM's Elec Man class.
Roll - Surge Sphere: fire an electric orb at an enemy. If there are more enemies nearby, it will hit up to two more, all for decent damage.
Ice Man:
Proto - Icicle Drop: fire at an area where you want a rather big icicle to fall.
Bass - Ice Shards: materialize five ice chunks which stay in the air briefly before shooting forward. (This behavior already exists in the weapon Delay Flame from the RNC expansion. Not sure what can be done about that.)
Roll - Icy Sweep: Roll swings her broom, which makes three Ice Slashers go forward, though they disappear at short range.
Fire Man:
Proto - Fire Wall: shoots a firetrap forward. Bigger hitbox and damage than normal Fire Storm, same ROF, but no fire "shield".
Bass - Fire Rain: makes fireballs rain down in a set radius as long as the fire key (pun not intended) is held, but slows down movement. (Much like GvH Ghostbuster's Ice Rain weapon.)
Roll - Fire Circle: hold down to create a larger version of Fire Storm's "shield" around you. You can move normally while doing so.
I don't know what to say about Time and Oil that hasn't been done, but I can give both a shot on request.