Counting units in multiple groups

[SleepyGuardian 0]

Hey everyone, I've gone and created a pretty ambitious first mission with multiple paths depending on how effectively the player can assist ground forces. I've completed the mission but I want to refine one of my scripts. I've tried to educate myself as much as possible but I can't seem to find a tutorial/forum post for my specific problem. 

One of the objectives for the player to complete involves destroying reinforcements dropped off via helicopter. I had scripted the objective to be completed by killing the infantry and destroying their supporting gunship. However, I scripted it using specific names for each individual troop, ie !alive Heli_Troop1a && !alive Heli_Troop1b && !alive Heli_Troop2a etc etc. It was a brute force method to sort of get the effect I wanted and required specific units to be killed. I am looking for a way for each squad member to be counted, totaled, and compared against a desired value. I'm using 7 as that value as that is about 1/3 of all the troops. The script I have tried using in the trigger is: ({alive _x} count units Heli_Troops1 + Heli_Troops2 + Heli_Troops3) < 7 && !alive Heli_2 && triggerActivated Trig_Heli_Troops;

The editor accepts the code but upon starting the mission I get an error message about a generic error in expression. I'm not sure what I'm doing wrong, but then again I barely know any real scripting beyond simple commands I can look up. I have also tried multiple different ways of writing the count units section of code including using && instead of + and separating each group name with (). None have worked. If anyone could help me out I'd greatly appreciate it.

 

Edit: Disregard solved it!
(({alive _x} count units Heli_Troops1) + ({alive _x} count units Heli_Troops2) + ({alive _x} count units Heli_Troops3)) < 7 && !alive Heli_2 && triggerActivated Trig_Heli_Troops;

Still kind of a roundabout way I feel, but it works. Maybe this can help someone else.

Edited May 24, 2018 by SleepyGuardian

[f2k sel 164]

A little simpler would be to add all the units then count them

 

({alive _x} count  (units Heli_Troops1) + (units Heli_Troops2) +(units Heli_Troops3))  < 7 && !alive Heli_2 && triggerActivated Trig_Heli_Troops;

[SleepyGuardian 0]

1 hour ago, f2k sel said:

A little simpler would be to add all the units then count them

 

({alive _x} count  (units Heli_Troops1) + (units Heli_Troops2) +(units Heli_Troops3))  < 7 && !alive Heli_2 && triggerActivated Trig_Heli_Troops;

Aaahhh, that's a lot easier. I had tried something similar but it wasn't formatted correctly. 

Thanks for the help! I'll be using what you put 

[pierremgi 4738]

So disregard as you solved it.