Within the NPC-filled hubs of the StarCraft II campaign, players will be able to hire mercenaries to use during subsequent missions. "They're one use per mission, but they regenerate after every mission," said Browder of the troops.

Browder then went on to detail additional objectives players will be able to complete in the course of a singleplayer battle, including optional quests to gain additional technology.

Click through for Browder's comments on mercenaries, research objectives, Wing Commander influences and other components of the exciting story mode:

Shack: In terms of the adventure stuff--well I don't know, what do you guys call it?

Dustin Browder: We have a terrible name for it, we call it "story mode." But you can call it the "adventure stuff," that's probably better.

Shack: Is the extent of it a hub for players to explore between levels?

Dustin Browder: Yeah, it's like a hub. It's like a place that lets you choose your mission, your technology. We've added some parts that haven't been in there in the past, that I don't think I've told anybody else about today actually--we've actually got some mercenaries you can hire, which is a new way to get some troops onto the field. And they're one use per mission, but they regenerate after every mission.

We've got some research that you can do, and that's really just a fancy way of saying we have some quests for you. So you have a scientist that says, "Okay, here's the deal: I can get some really cool technology for you, but I need you to go get some stuff from the battlefields." So when you get into the battlefields, some battlefields will say hey, there's a research objective. Find the Protoss artifacts, or find and kill that giant horrible Zerg creature that's going to really wreck your day unless you're really ready to fight him.

So then once you complete enough of those, over multiple missions we unlock some special tech for you. And then of course the armory tech where you choose what upgrades you want to have for your units.

So it's a hub for all these things, and then in addition, it's a chance for you to get a little bit closer to these characters and find out more about the story if you're inclined. If you're not inclined it's cool. We've got lots of little cutscenes that are full of action and people shouting at eachother and stuff. You can just watch those and you get the gist. But if you want to find out more of the inner motivations, you can delve into it.

And our theme in this one, it's like, look, everyone has a different tolerance for story. Some people want more, some people want less. We don't want to force it down their throat, but we don't want it not in there. So we create an environment where it's much more of an optional experience. If you're really interested in these characters--and we kind of hope that at some point everyone is interested in at least some of them--then you can sort of customize your story experience and get as much of it as you want.

Shack: It sort of reminds me of flight sim games.

Dustin Browder: It's very Wing Commander.

Shack: Yeah, Wing Commander, any of those games.

Dustin Browder: Tie Fighter, yeah. Wing Commander is one of our obvious favorite games. We all played it back in the day and loved it, and it's something that definitely spoke to us. I know we're going back years now to pull some of these things out, but we kind of feel like hey, what if it works? Other folks sort of feel like there's sort of an evolution, you can't go back. We're like, hey, if it works, we can go anywhere.

Shack: People talk about that in terms of the RTS and strategy genres, moving to consoles, and what might--

Dustin Browder: "Where's it going," right?

Shack: Exactly. And you guys seem to be saying..

Dustin Browder: It's going where it's fun. And it should go wherever it makes sense for every game. Some of our competitors are doing stuff that I would never do for StarCraft, but I respect it.

For them it makes sense. They're trying to differentiate themselves, and they want to do something a little different. The parts of RTS they don't enjoy, and maybe their fans don't enjoy--like, if you don't like base building, hey there are some games out there that do that. I like it, and I think a lot of our fans do as well, so for us it makes sense to keep a lot of those elements.