M'butu deployed to Mar Sara in December 2499 and was attached to Third Squad of the 417th Confederate Marine Platoon. Third Squad performed the initial recon of Oasis with Second Squad providing heavy support. The squad became embroiled in a fierce firefight with zerg. M'butu was out of contact for some of the battle leading Sergeant Jensen to look for the private; the sergeant subsequently went missing. M'butu rejoined the platoon as they attempted to make the failed rendezvous with Valkyrie Vixen. The private went missing during the retreat to Bunker Complex 3847.