It begins as you waking up form a explosion with a sergeant of a platoon of marines screaming at your face to get up and defend this position so the covenant wouldn't be able to access ONI files of Earth and its defenses. Anyways back to the story, when you get up, u basically learn all of the basics of halo. The mission is set in a entrance to a oni base in a ruined city in reach. The character ur playing as has no shields or HUD but has health just like in odst but no stamina. Once you walk up the stairs to the top of the wall, you see marines firing at the terrifying elites, grunts and jackals while wounded marines at edge of wall in cover r screaming in pain.The introduction basically starts with a intense battle, it shows the horrors the human-covenant war.
It makes u want to help the marines who are smarter than the old marines of halo 3 and know what to do. When you are on top of the wall, a corporal asks u to get a sniper and help the marines at a bunker north of the gate by sniping jackals who are harassing the troops on the field.After you snipe them all, The sergeant this time asks you to get a rocket launcher and start blowing up the wraiths that are bombarding the wall before they eliminate all the marines on the wall and you since they can effect you to. Since others were to busy picking off elites and grunts on the ground, you were the only one that could do it.
After you destroy all the wraiths, elites and grunts are somehow breaking through so the sergeant asks you to lead a bunch of fresh troops from the front and help another squad of marines fend of the platoon of covenant troops. After your done clearing out their strike force(lots of marines died and some with gory deaths), the entire garrison that you were fight with was suddenly getting the covenant to retreat and again the sergeant asks you to get too the AA guns and destroy the troop carriers before they escape. After you done that, the sergeant and other men thought it was over but suddenly a Scarab comes forward and eliminates most of the garrison and the sergeant. Sine your a survivor now, some random troops tell everyone else to retreat. As you escape random shots form the scarab, you watch marines die of unexpected deaths.
After you ran across and entire city block, you made it to a small apartment complex to make a stand against it. The Survivors fire at the scarab hopelessly to fend it off. Once the scarab got close, it fired its green beam of devastation at the marines grouped at the window. The blast immediately wounded you as you struggle to stay alive. Suddenly as the scarab was about to make its final blow, it blew up out of nowhere. A few seconds after that a random Spartans comes to fix your wounds and tell you that the scarab was dealt with by them. That ends the first mission.
Anyways guys you think this should be the first mission of halo reach,kind of like a introductory into reach with intense game play and all. This is just a introductory similar a bit to moder warfare 2, and your not going to be a marine after this, your going to be a spartan with shields and HUD.