That Call of Duty: Black Ops 2 will utilise the same engine as Black Ops – albeit heavily modified – is a non-issue, according to Treyarch studio head Mark Lamia.

Likening the upgrading of an engine to the remodelling of a house, Lamia stated that he didn’t see the point in discarding that which was working.

“Just because you’re remodelling the house and it will look new or it will have a new kitchen, you don’t tear out the foundation, or break out some of the framing,” he said, admitting that his analogy was a gross simplification.

Lamia did see the need for constant improvement, however.

“You can’t make a competitive product if you’re not upgrading that engine along the way.

“I think the whole thing about a new engine…sometimes that’s a great buzzword. Well, I have a new graphics engine – is that a new engine? Where does it start and stop?” he asked.

Two areas that have been focused on for Black Ops 2 are the graphics and the lighting, with Lamia calling the amount of work that has gone into each “significant”.

“I think what people are asking for is for us to push. They want us to make a better-looking game; they want things. I don’t think those are things people can’t ask for… I think the questions are valid. The answer may not need to be an entirely new engine, but you might need to do an entire overhaul of your entire lighting system. The trick is, we’re not willing to do that if we can’t keep it running at 60 frames per second — but we did that this time. So this is the Black Ops II engine.”

Black Ops 2 is slated for a November 13 release.