Aliens Fireteam Elite - All hidden secret weapons and perks and how to get them

Here gamers are all the hidden weapons in Aliens Fireteam Elite.
I say hidden or secret but In reality they are more just slightly out of the way and once you know how to get them it will just be down to a bit of RNG in order to get them so at least you'll know how to be in with a chance to farm for some of the best weapons and perks in the game for all classes.
With this guide you will now be able to find and unlock all of the harder to get weapons and perks in the game....So what are you waiting for?