If you manage to beat the campaign on any difficulty and go through the credits, you should see a cut scene that was described by your father in the beginning of the campaign about the way the federation makes a ghost crack. Thumbs up if you love Twinkies and if you ever want to play extinction with me, add me on PSN: SquiirtleZ -Modder_Dude0_0
What you do is you get out your pistol then you get on a ladder and push up on the D-pad twice whenever you get ontop of the ladder and you will not have a gun go to any gun and buy it and you can do this as many times as you want.(I'm pretty sure this only works if the controls are set on default)
The best way to make it out alive on solo play hasn't been figured out yet, but I've experimented quite a bit and have found the best setup(at least for myself)
The class load-out you might want to use is Weapon Specialist for the later hives of the game. As soon as you make it to the city area, you will encounter Hunters and scorpions together. If you manage to upgrade the weapon specialist to the maximum, then you have bought your ticket to the country side.
The type of ammo you might want to have is the regular ammo. I know I sound dumb, but it works once you upgrade the ammo to level 3. I wouldn't upgrade it to level 4(max) because it's pretty useless since you don't really stay near the box. Once upgraded to level 3, you get a max ammo and it reloads the clip for you so you don't waste time and get downed.
When it comes to the strike package, I would suggest getting yourself a vulture. If upgraded to level 4, they will save your life on the choke points since there's 1-2 rhinos on your heels.
The equalizer slot is kind of important because you're going to need something to take out in case of chaos. On this slot, I would suggest getting the MK-32 Grenade launcher as this is extremely effective against rhinos once upgraded to level 3.
The boosters actually help towards the middle of the game(the city area). I would suggest getting the armor since it WILL be useful after arming the nuke and getting to one of the choke points.
I would suggest having the automatic pistol and upgrading it to level 3. You don't really need this pistol but it comes in handy once you run out of ammo on your other 2 guns.
When you barely start the game, you might want to get as much challenges done as possible and searching through the trash and boxes laying around. First things first: upgrade your weapon specialist and pistol to level 3 while at the motel area and you might want to upgrade your ammo to level 1 when you clear the first barrier hive. Once in the city, upgrade the vulture to level 3 since it gets hard on the second barrier hive. also, upgrade the armor to the maximum since it comes handy on the first hive of the country side. As soon as you get to the country side area, you should get the Chain SAW as this gun will protect you from rhinos as well as the Honey Badger Assault Rifle to protect yourself against hunters. Keep in mind that a rhino spawns on the first and last hive of the country side and you must have some attachments on the Honey Badger and the Chain SAW. Before you arm the nuke, you might want to throw down your fully upgraded armor and some ammo. As soon as you arm the nuke, run like there's no tomorrow. When you get to a choke point, you might want to take out your level 3 vulture to help you fight off the rhinos and hunters coming at you. When you make it to a choke point, throw down more armor and ammo since I know you must have used it all up. Also, you might want to take out another vulture if your first vulture destroyed itself a while ago. As soon as you see the second meteor sink into the ground, run straight for the chopper. Don't look back for any reason. If you managed to make it to the chopper without going down once and with more than 1:30 on the clock, you should make it out with a "platinum" escape.
If you manage to escape, you should see the awesome cut-scene of the nuke being triggered and you escaping in the chopper. If you escaped for the first time on solo, you should get the "sprinter" trophy as well as "No man left behind" trophy. if you picked out every searchable box and bag, you should've also gotten the "Trash Picker" trophy. If you escape with a relic on, you get the "Throttled Escape" trophy.If you also managed to complete all challenges for all 14 hives then you should've also gotten the "completitionist" trophy.(yes these are the hidden trophies)
Slap that thumbs up button if you escaped and love extinction and if you want to take down some aliens with me, add me on PSN: SquiirtleZ -Modder_Dude0_0
[EDIT] you all need to show respect for the people who post on this website instead of posting random offensive comments and say "thank you" for once in your life. Also, I've changed the Riot Shield to an MK-32 Grenade launcher because you will need it when in trouble with the rhinos. -Modder_Dude
There is a way to get gold camo on extinction mode. You can do it by finding a suitable attachment for your weapon (not the pistol) and getting it. Once you get an attachment, you should notice your gun changing camos. If you didn't get golden camo, search for more attachments and keep swapping until you get what you want(gold gun with preferred attachment).
Slap that thumbs up button if you like gold guns on extinction mode and add SquiirtleZ on PSN if you want to play with me. -Modder_Dude0_0
To make it out ALIVE on this game mode is simple if your teammates cooperate. Your team might want to have their stuff to look like this: -Weapon Specialist(2x), Medic, Engineer The Tank class is a very selfish class since it only helps 1 person out...so we're excluding this class.
You all need to cooperate on certain stuff too. -Sentries(2x), Vultures(2x) These are helpful once you all arm the Nuke since the vultures will take out aliens in your path and if placed properly, the sentries will use their fire power to take out some if not all aliens. I would suggest placing 2 sentries where the barrier hives used to be BEFORE arming the Nuke.(you can get 2 sentries if you upgrade them to level 4 with the skill points) There WILL be meteors blocking your way at the barrier hive spot so once you get to one, set 2 of these babies out
From time to time, your team might go down, so you might want to have 2 people with "feral instincts", 1 person with armor, and one with explosives. Once you all arm the nuke, you will need to run for your lives because there will be 3 rhinos after you and running fast with feral instincts will be a must. Armor will protect you all from hunters and scouts that you encounter while running for your lives.
The extra powerful weapon doesn't matter, but I suggest all 4 of you get MK-32 Grenade Launchers since the barrier hives will take some time to clear. MK-32 Grenade Launchers, however, make it quick.
The only way to make it to the nuke is by upgrading the CLASS slots all the way, upgrading the FERAL INSTINCTS/ARMOR all the way and the VULTURE/SENTRY all the way. It doesn't matter if you upgrade the ammo or pistol all the way, but you will eventually run out of ammo.
Slap that thumbs up button if this helped a bit and don't forget to add SquiirtleZ on PSN. (yes I do have ghosts!) -Moddder_Dude0_0
[EDIT #1] when it comes to ammo type, have 1 person with regular ammo, 2 with fire ammo and the other person with armor piercing ammo. regular ammo is handy after running out of special ammo(like fire ammo) and can be upgraded to the point where it gives a max ammo. explosive ammo comes handy when taking out bothersome scouts,hunters and scorpions. armor piercing, on the other hand, takes out the rhinos easier than explosive. fire ammo can be used to take out the barrier hives since it affects plants for the most part and has a lasting effect by making it catch on fire. hope this edit helped you get further in the game and slap that thumbs up button if you like turtles. -Modder_Dude0_0
[EDIT 2] If you have a person with a rank <15, I would suggest they have the following loadout: Weapon Specialist, P992 pistol, Regular ammo, Armor, Mortars, I.M.S., Grenade turret. They need to upgrade Weapon Specialist to level 3, ammo to level 3, Armor to Level 4, I.M.S. to level 2, and Grenade Turret to level 3. Hopefully this helped some of you lower ranking players. -Modder_Dude0_0
This feaure becomes unlocked at the 'Main' menu when you start a game in Single-Player Campaign mode on the Regular or higher difficulty setting and then complete the 'Ghost Stories', 'Brave New World', 'No Man's Land', and 'Struck Down' missions.
Start Chapter 1, 'Point Of Contact' in Extinction mode and collect a sniper rifle. Then shoot an 'L', then an 'O', then another 'L' on the 'Gil's Lodge Motel' sign to start the Golden Aliens easter egg where any alien shot will explode into golden alien stuffed dolls, this will last for ninety seconds and can be repeated.