Need help with legion-units

Need help with legion-units

I made a legion units, thats mean, after you was train unit thats will create leader (can be controled) and 5 something like dummy units=have locust ability, can be killed but cannot be selected

Now, I need help from someone how to do :
-after leaders death will HIS dummy group fade out
-dummy units will follow our leader and will make same things as leader
-have collisions (I don't know why these dummy units don't have collisions and I wasn't turn off it)

http://img223.echo.cx/img223/2873/wc3scrnshot051405180052011pf.jpg

Just use patrol for the second stuff. As for the third one, adding locust removes collision as well. And as for the group, just pick the dummies and kill them yourself.

~Daelin