How to reconfigure the weapon to support E to pick it up

By default the multiplayer mode uses weapon factories, when you run over them, it picks up that weapon, if you already have it, it adds ammo, Quake 3 Arena/Unreal Tournament style. However you can still implement the press E to pick it up mechanic.

1. Open the Replicated_PlayerController blueprint and add a custom event that runs on the server to send the msg in the MP Interact logic (this will be like this by default in the future)
mp_weap_e

2. Download this example blueprint actor that adds the weapon when interacted with
BP_InteractWeapon