I wonder if it includes a Createunit command, and how can it be done. Has anybody tried?

The script file is just that: a script, heres a sample of whats in it:

#CIV_DESTROYED_BY_PLAYER
#advisor Military Happy
#text
We have destroyed the $CULTURAL_LEVEL3 $CIVNOUN0, $RULER_TITLE2.
#itemlist
What's the big picture?
Good! They deserved it. Carry on...
#active 1

#DISBAND
#xs 320
#advisor Military Surprised
Disband $UNIT0?
^All due respect, but offense [is] the best defense.
^Are you sure?
#itemlist
Yes, we need to!
No. Maybe you are right, advisor.

so, no way to do things like in civ2 events.txt with this file?

nope :(