Have a Supreme Court decision about the 2nd Amendment leading to an unrestricted right to bear arms? (This might be current politics, though). This would also explain why companies like Warstock Cache and Carry and Ammu-Nation are able to sell weapons that would normally be either banned or require very special authorization to use in the real-life USA? (Things like sticky bomb, heavy sniper, heat seeking missiles, and in Warstock's case, military vehicles such as fighter planes and a tank)