That’s a Coyote loadout, Dingo only has 4x gun mounts.
I ran 4x Autocannon and 2x Photon on my Coyote for awhile but didn’t care for it. I switched up to 3x Tachyon and 3x Autocannon and I’m much happier with it. The problem with mixed gun loadouts is that if they have different projectile speeds, and autocannons are slower than EVERYTHING else, then it’s extremely difficult to line up a shot where both hit. At any range beyond point blank the amount of lead for the shot will differ a lot, more than aim assist can compensate for. So I found I was only ever hitting with one type of gun. The 3x Tachyon/3xAutocannon mix is me basically planning to hit with only Tachyons. At point blank range or against big/slow targets the AC damage comes into play too but that’s just a happy bonus.