Chapter 2: Reunion

The unexpected barrage by the marine squad caught master chief forcefully in the shoulder, thankfully his shields held, though at low power. Simultaneously the marines ceased fire and a lone armor clad figure walked out onto the battle field. It was Spartan 116, Kelly. She realized who the other Spartan was and snapped into a smart salute, the master chief saluted back and gave the signal for at ease. Kelly gave the order for her squad to relax and that the Master Chief was not an enemy.
Chief walked over to the dead flood and checked to see if they had anything of value to him, he took three still usable plasma grenades and a plasma rifle, dropping the AK. He turned to the waiting hog and climbed into the gunner turret, surprising the marine about to retake command of it. Kelly told the marine, in code, to take a seat between her and the other marine. On the way back to Gamma base the chief was about to open a private channel to Kelley, but she signaled him to stop.
After a short drive with no incident they reached the base. It was bunkered down behind razor and barbed wire, and a solid wall of tristeel two feet thick, it was almost impenetrable. A section of the wall folded in and allowed the hog to enter. Upon entering Chief noticed several things first of things looked much more advanced than when he'd left and some of the weapons looked like those he saw on halo, yet slightly altered. Kelley now opened a COM channel and told the chief about things since he had left, Covenant had come to earth and begun to destroy the human race at the source, also a pelican caring humanoid flood crashed into a large skyscraper and unleashed a horrible new type of creature, something called the Flood.
"There is a base like this one on each of our floating cities, though this is probably one of the smaller ones, only about 500 marines stay here" Kelly reported to the chief.
"Where do the flood stay at and what weapons do you have to fight them with"
"They stay around the original crash site or in the sewers, taking out anything that comes to close. We have got the standard shotgun and pistol that you're used to fight with, those are fair against the flood, but we have made improvements on other weapons while you were gone. The plasma rifles the elites use now fire twice as fast, don't over heat, and are easy to reload or recharge. The plasma pistol now has a greater tracking ability, a higher overcharge limit, and can be easily recharged and reloaded. The needler is now almost our most powerful weapon; the needle detonation has been amplified, and was given a much higher rate of fire. We gave the fuel rod cannon a larger blast area, longer range, and 39% more accuracy. My personal favorite in the covenant arsenal, the plasma sniper, has just been discovered it has been amplified with Cortana's original Plasma Lance technology; it can blow through an elite's shields and armor with a single round" Said Kelly as she showed the chief each weapon to the Chief.
"Alright give me a shotgun and one of those new Fuel Rod Cannons, and let's kill some flood"