if your talking about the last level of the halo wars campaign the person they did not save was sgt john forge he and 3 Spartans where going to blow up the sun to destroy a fleet of forerunner ships the covenant were planing to take unfortunatley the arbiter and a large group of elites attacked sgt forge and the Spartans after the fight the arbiter was dead and the reactor was damaged sgt forge told the Spartans that he would handle the reactor and he took the reactor into the sun after that it shows a cutscene with the ship spirit of fire escaping the exploding sun after that is the last cutscene of the game when the captain wants professor anders to go into a cyro sleep chamber than it shows a cyro chamber with sgt forges name on it
Balls
Sgt Johnson died in HALO 3(last level) by the monitors laser after he tried to activateHALO (they activated the broken HALO from HALO 1 so they can destroy the Ark-activates all the HALO's). Masterchief got lasered twice short and Arbiter got lasered once long. Eventually Masterchief killed the monitor and activated HALO. He left Sgt Johnson to die because Sgt Johnson wanted to. Masterchief and Arbiter escaped in a Warthog and Drove to the Frigate.
With the help of Sgt. Johnson kill all the aliens. Reach 20 kills to complete the level.
Sorry, no Sgt. Frog games for PS2, although there is a Sgt. frog game for DS. Google will help you on that
John
if you mean who is John in halo, there are John-117, aka Master Chief, and Sgt. John Forge, from Halo Wars (strategy game, not Combat Evolved)
u can be under the command of the arbiter (not same 1 in halo 3), prophet of Truth, Brute Chieften, Sargent Forge, the Rebels or Serina (like Cortona) WRONG u can be sgt. forge, anders, and captin cutter, the same arbiter in haol.o 2-3,brute chieften and (the WRONG part) the prophet of REGRET, u can not be the rebels fore runners flood or serina and cortona cortona is not in halo wars @ all and halo wars is something BEFORE halo combat evoled(they are like from before halo 1) okay the first guy was actually right on who you can be except for the rebels, which is captain cutter. If you were the same arbiter in Halo wars as you are in Halo 2-3, that means there would BE no arbiter in Halo 2-3, cause in the campaign the arbiter is killed by Sergeant Forge. And i think they're coming out with an expansion where you can play as the flood.
if your talking about the last level of the halo wars campaign the person they did not save was sgt john forge he and 3 Spartans where going to blow up the sun to destroy a fleet of forerunner ships the covenant were planing to take unfortunatley the arbiter and a large group of elites attacked sgt forge and the Spartans after the fight the arbiter was dead and the reactor was damaged sgt forge told the Spartans that he would handle the reactor and he took the reactor into the sun after that it shows a cutscene with the ship spirit of fire escaping the exploding sun after that is the last cutscene of the game when the captain wants professor anders to go into a cyro sleep chamber than it shows a cyro chamber with sgt forges name on it
There's Contact Harvest, which tells the story of Sgt. Johnson before the UNSC found Halo. Then there's The Fall of Reach, which tells the story of Reach. Just look for them on google and it should tell you more about them.
Though he died in Halo 3, Halo Reach technically (in the Haloverse) comes before the other Halo's, but he does not make any appearance in Reach, except for his voice available for use in firefight.
The residents of the Pillar of Autumn. This includes, Captian Keyes, Cortana, Master Chief and Sgt. Johnson whom are key human characters in Halo: Combat Evolved.
Balls
Sgt. Forge sacrificed himself to detonate a slipspace drive aboard the Covenant ship, destroying it above the planet Harvest in the Halo franchise. The planet was not blown up, but the Covenant ship and a significant portion of the planet were destroyed in the process.
um no...
That is classified
You need to preorder Halo 3 ODST and have the code on XBOX Live to get Sgt. Johnson