Energy Ammo is the most effective choice against other players but you need to mine the resources first to get it, make it a priority when you first deploy to get to an ore site and add a couple of energy ammo rounds in your crafting queue before you start mining, this has two benefits, it will start making it as soon as you have the resources but also will tell you when you can stop mining, 2 x 30 energy ammo is sufficient for most encounters.
Now that you have the ammo you will not want to waste it, you should have energy ammo loaded in your gun ready for an unexpected encounter with other players, this is your 'travel fit', when you need to engage with NPCs switch back to kinetic to get the job done.
