Get v0.84 at Armaholic and try unpacking and installing again. .84 is allready a beta, that makes .90 a beta of a beta, it's by no means finished. And won't be until Charon comes back. If he comes back.
This is quite simple to achieve by use of the function:
[_spawnpos,_spawnnumber] call CHN_UNDEAD_fn_CRTZEDGRP
An example:
Assuming your player character is BLUFOR
Place a trigger, set activation to BLUFOR Present, name it "zombiespawn"
Condition:
this
On Act:
[zombiespawn, 10] call CHN_UNDEAD_fn_CRTZEDGRP;
That spawns a group of 10 zombies at the triggers location.
You can also have the zombies spawn elsewhere, an easy way to do this
is to place a Game Logic where you want the zombies to spawn and change
the "zombiespawn" in the On Act field to the name of the game logic.
For more information, have a close look through the documentation, it's all
there. Otherwise feel free to PM me and i'll see if i can help.
NB. I'm by no means a master at this stuff, i'm absolutly sure there's much
better ways of doing it if you're making a longer mission but that's beyond
my skills, for now :)
Hope that helps,
Vaporific