Some binds I've found useful...

[vcxzet]

Rippy: To spawn, use the follwing commands for binds:

ALIENS
For Dretch: \class level0
Builder: \class abuildupg; \class abuild
The above will spawn as an advanced granger if it's available, otherwise standard granger. It works because once you've spawned you won't spawn again when the second executes.

HUMANS:
Rifle: \class rifle
Builder: \class ackit; \class ckit
(See above: "choose the best one")
Note that you /can/ spawn with a ckit when the ackit is available, but there isn't a point in doing that.

what about
/class level1

[Dustin]

Um, no.
You can only spawn as those listed. level0, abuild, abuildupg (when avail.), rifle, ackit, and ckit. (I tried it as a human, at least, \class prifle -- it's not a starting class so you can't use it.)

EDIT: Tried with Alien; "You cannot spawn as this class." Spawning is a special case in Cmd_Class_f (g_cmds.c).