BFR's (Battleframe Robotics)
If you have 4 certification points, and you tried getting the BFR certification, it doesnt let you. You need to go to the caves, capture 5 facilities, and make 75 kills. This takes a long time but its worth it... kind of.
Free weapons
Go to training mode and select "Shooting Range". When in the shooting range, select any weapon that you want while in your armor. Next, go to "Favorites" and save inventory. Exit training mode and go to terminal. Select "Favorites" and choose the inventory you saved. You should have your weapons.
MAX's (Mechenized Assault eXosuit)
MAXs are very powerful armours capable of delivering a packing punch to whatever is in its trail. You get a weapon that attaches to 1 or 2 of your wrists. There are 3 types of MAXs for every empire. Anti-ground vehicle, Anti-air vehicle, and personnel and other MAX exterminating. Anti-vehicle MAX's missles lock onto the target and stay with it for a long time. When it hits, it KILLs if you shot a full load of like 8. You shoot a full load in about 5 seconds.
The personnel and other MAX exterminating ones are Mchine guns 6 times as powerful as rifles and other machine guns. Well, there ya go.