G4 Sunbathing is the ninth level in Marathon. It is the sixth level of Counterattack, the second chapter of the game. Being exposed to outer space, it is the only vacuum level in the entire game. Your oxygen reserves will slowly but continually deplete in this level.
The objective here is to activate a satellite dish up on a platform in the northwest part of the level. Before you can reach the dish, several other buttons throughout the level must be hit. The level is large and open, with many paths you can take that loop back on themselves.
The level contains two pattern buffers, one at the start of the level and one in the center. There is one 2x shield recharger in the center of the map and a 1x shield recharger in a small room in the middle of the map's west side. There are three oxygen replenishers: one in the middle of the map, one in the southeastern corner of the northwest courtyard, and one in the wall of an upper corridor in the east of the map.
At the start of the level, use the pattern buffer next to you. Make your way directly south past the blast doors. When fighting the enemies, you will quickly notice your Assault Rifle isn't available here because it's a vacuum environment. Turn right, then left to find a safe haven in the middle of the map, with ammo, a pattern buffer, a 2x shield recharger and an oxygen replenisher. Through the rest of this level, whenever your oxygen levels get low, return to this place to recharge and save your game.
The level consists of four courtyards with upper corridors running around them. There are two rings of corridors: an outer ring going all the way around the level, and an inner ring encircling the oxygen room in the middle of the map.
There are many paths you can take. It isn't strictly necessary to go down into the lower courtyard areas at all, but you can find more ammo there. If you fall in a courtyard, you will be able to find an elevator back up near the middle of the map.
Make your way to the northeast corner of the outer ring; there's a switch there you should hit (switch 1 on the map). Next, hit switch 2, which is located in a newly revealed side room just northeast of the inner ring.
Switch 3 is found in the southeast corner of the outer ring. It will unlock access to ring 4, in a room connected to the southeast part of the inner ring.
You can find switch 5 in a room with a 1x shield recharger in the middle western part of the map. Finally, switch 6 is found just to the southwest of the inner ring.
After you have hit the sixth switch, you can now make your way to the northwest corner of the outer ring. From here, jump to the communications relay in the building in the middle of the courtyard (room A on the map). Hit four switches in the walls of the room, then make your way back to the center of the map. Top up your shields and oxygen, use the pattern buffer, and use the exit terminal in the newly opened small room reachable from the northwest part of the inner ring. You will be teleported to Blaspheme Quarantine.
The first terminal is a message from Leela, telling you that she has just performed an inspection of the UESC Marathon's sensors. She tells you that she did not detect a ship entering the Tau Ceti system, and therefore that the Pfhor ship must have a faster-than-light drive.
She then gives you a map to the dish array and last terminal, and explains you have to reset all four switches to activate the secondary transmitter so she can send a warning to Earth.
The second and last terminal is a message from Leela, who tells you that the message has been sent and it will arrive in 92 years. Next, she sends you to the Marathon's Engineering Section to rescue security personnel being overrun by aliens.
- The music for this level is a song titled Landing. It is track #7, and was previously heard in Arrival (Level).
- The named regions on the level map include "Dead Sea", "D.S. Control", "Death Valley", "D.V. Control", "M.C. Control", "Airlock 2", "#41-a", and "Satelite Relay". The last name is misspelled; it should have been "Satellite Relay".
- When this map is opened in a map editor, a written message can be found outside the bounds of the level. It reads, "YOU MUST LOVE M-THON IT KICKS".
Marathon - Level 8: G4 Sunbathing