Eliminating a groups as an Objective

[one_shot_one_kill]

I have a group, called group e, (e = group units this).  I want as an objective to eliminate the group 100%.  As of right now I have a trigger in the game that has in its condition field (not alive group e).  When I start the mission I get an error message that is as follows :

error: not alive group e |#|!:  Error Type Group, expected object

My questions are:

Is this possible to have a group elimination as an objective?

If so how do you do it?

[seanver]

Put in a trigger:

("Alive _x" count units groupname) == 0

[macguba]

It sure is.   Put this in the condition field of your trigger

Count Units e == 0

syntax not guaranteed but I think its right.