super mutant weapons, that become heavy weapons for everyone else -their idea of a hunting rifle starts with .50cal
Yes, originally, Super Mutants generally used heavy weapons, such as the minigun and rocket launchers, however in FO3 they routinely used normal hunting and assault rifles.
Yeah, there will be loads of cool unique weapons I've heard, but this time they actually look different too!
An assault rifle that shoots explosive rounds... I'd rather have different ammo have different types instead like Full Metal Jacket, Armor Piercing, Hollow Point (Incendiary, Explosive if you want, but I'm not too keen on them) and they'd be effective and ineffective against certain enemies and armor.
I would love to see them bring back different ammo types. This was always an option in FO1/2. Hollow Point, Jacketed, and Armor Peircing IIRC.
But mostly, the Unique Weapon I want to see the most is the .223 Pistol.
http://fallout.wikia.com/wiki/223_Pistol
And, like in the original games I want this, and other pistols, to not be totally useless after about 2 hours worth of gametime. (with the sole exception of the silenced 10mm, simply because until the Pitt, it was the only silenced gun)