MSK Substitute Weapons

My friends and I were hoping to beat the MSK a couple times so we can use those weapons in Frostnite. However, they don't have the Deatomizer, Poshot, Bundlebuss, or Surround Pound. I was wondering what weapons would be good in place of those (like the Santa's Little Helper since we all have that) and if there are other viable hardware melee options. I've also heard that the Xenon bow is solid, and we all have that, so is that valid or not?