StarCraft® II

i start campaign, get to hyperion, then complete Ariel Hanson's mission(grabbing 3 zerg points), then go to lab, and somehow at this point i have 6 zerg research points instead of 3.
Is it a bug, or a usual thing?

Pretty sure you got them from one of the mar'sara missions. Don't hold me on this, since i can't remember which missions gives points;)

All missions give points, except for mar'sara ones, char ones and the one where you choose tosh/nova. So i'm a bit confused as to why i have these 3 points.

If I remember correctly, you receive 3 Zerg research points as a bonus when you get the lab...
There are 36 Zerg and 39 Protoss research points in the campaign, so those 3 Zerg points are probably given to balance them out.

You get zerg research points on mar sara. For each group of marines you rescue, you get a zerg research point. It's just not visible at that time as you were not in the hyperion.

23/05/2012 09:19Posted by Ristov

You get zerg research points on mar sara. For each group of marines you rescue, you get a zerg research point. It's just not visible at that time as you were not in the hyperion.

Although I haven't tested it myself, I still believe you get 3 Zerg research points as a bonus when you get the lab. The same conclusion has been reached here:
http://us.battle.net/sc2/en/forum/topic/540954326
http://www.teamliquid.net/forum/viewmessage.php?topic_id=171789

I'm sorry to bump a thread this old, but I also noticed those extra Zerg research points and just in case someone finds himself here looking for a reason (as I have done just a couple of minutes ago), I would like to clarify:
The three extra points are given to you when the lab opens, as stated by Fulminator. You don't have to do anything to get them. I didn't do any sidequests on Mar'Sara.

i aggre with Formidable and Fulminator.
the story about 1 zerg research for each group of marines saved in Zero Hour is also false since i sacrificed them all during my Brutal run.

i aggre with Formidable and Fulminator.
the story about 1 zerg research for each group of marines saved in Zero Hour is also false since i sacrificed them all during my Brutal run.

You sacrificed Kerrigan too you misserable swine!

in zero hour you got research points if you rescue the mar sara dudes.