What happens in all of the Halos And Please Not a lengthy description

i never beat 1 or 2 but i got very far in both but i can tell u everything about 3 but ill sum it up at the start u jump ot of a drop pod and land, ur suits locked up and cant move and everyone thinks ur dead u almost kill the arbiter until u find out hes on ur team later u come after the head of the covenant, the prophet of truth, arby uses and energy sword to slice his throat, u and arby battle the flood and then go to the halo ring to blow it up and then u drive a warthog off a ramp into the dawn and almost get crushed arby flies the dawn to earth but the ship snaps and arby makes it to earth and there is a shrine remembering all the soldiers with "sierra 117" carved in and if your not on legendary u have to wait through the 10 min credits and then u see u floating through the ship (alive) and ur also in another universe ftw i skipped the middle just the cutscenes from the start and the jist of the last 2 levels