Underground - Sector 2: Mars City Service Sub-Level

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Underground - Sector 2: Mars City Service Sub-Level is the fourth level of The Lost Mission. In this level, the marine must be led by a Sentry Bot to the elevator that leads to Exis Labs, and on the way, the marine must fight a bunch of heavy-weight foes. The player can obtain Rocket Launcher in this level, as well as a Chaingun, if they haven't done so in the last level.