LOS ANGELES — Clad in close-fitting black outfits, two performers get into stance for a fight scene. The cameras surrounding the massive stage in Playa Vista start rolling.

One turns around slowly, pantomimes being shot, and carefully, deliberately, arches himself backward, clawing at the air before a stunt coordinator helps ease him toward a black mattress.

That movement is translated into dots and lines on a nearby computer, transmitted by the round, white sensors embedded in the suits’ colorful almond-shaped patches. Later, those will be fleshed out into characters and scenes in the new “Call of Duty: Black Ops 7” game, which debuted last week.

It’s all part of the blockbuster production effort that goes into making one of the most popular video game franchises ever. “Call of Duty,”

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