From Halopedia, the Halo wiki
The members of Team Lima were recruited voluntarily from the survivors of Covenant attacks circa 2539.[Note 1] They were trained under the watchful eye of Lieutenant Commander Kurt Ambrose on the planet Onyx.
After Operation: TORPEDO, all members of this group, along with most of Beta Company, were pronounced KIA, as the explosion killed almost every SPARTAN-III, with the exception of Tom-B292 and Lucy-B091, the only known survivors.
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