Your Take on the Following Allowances to a Campaign?

As the Overseer for an upcoming starter session for my group I thought it would be good to get some input from fellow Overseers on the following homebrew entry addendums. Also, I am open to suggestions on things that could be a good addition.

1. Alternate ammunition ordnance for weapons or modifications that follow along the likes of New Vegas, FO 4, and FO 76. For Ammunition Ordnance a brief sampling would like in New Vegas of things like the EMP Slugs for shotguns or variant rounds for the grenade launcher like in Resident Evil and Dino Crisis i.e. the Cryo, Pyro, Acid, and other real-life samples i.e. flare or smoke rounds.

2. Drones controlled via the PIP-Boy or other military hardware an software.

3. Aliens like Power Loader with limited Fusion Core charge to clear a blockade at an underground complex to gain entry or to escape. Haven't decided yet.

Thanks to all responders.