that one i like. Lictors

Now that there are only 2 races in the game, you can make LOADS of different classes for them. In a battle where every tyranid is a player and not AI, that would rock:
Tyranid base class - Gaunt with fleshborer/claws.
After earning points (RS1 system of course

) a nid player can choose other classes:
Genestealer - runs fast, climbs walls(?), strong as hell.
After playing as a genestealer, you can become a Lictor.
Lictor has partially transparent skin and internal organs, and is almost invisible if not moving.
And to Chrome, there are really a LOT of classes in this mode, and weapons. some of them might be shorted off. Like the Guardsman knife can be attached to the lasgun and become a bayonette. One less weapon to take up slots and to model.
I noticed that MANY Tyranid classes were armed with "Claws". Almost all of them. can that be changed to either Scything Talons or Crushing Claws on different nids.
The ranged weapon on a nid could be a secondary fire attack for the close combat claws/talons, so the nid player won't have to swap between only two weapons at the same time.
Some special attacks could be added tho. Lictors could get their camouflage switched on/off. Gaunts and Stealers could leap at prey.
For some reason i like the "drag back and devour" concept. Could Rippers do that for a player? They run up to a corpse, eat it, go back to their spawnpoint and dive into the pools off goo. The player has to watch over them, so they do not get killed by the opposing team.