You All Know the Answer.

bruh animevac the type of dude to lose to the guy with the knife in a gun fight

Mepishit only has a pickaxe

Sorry to Say This, Well He Even Had a Webley Revolver and Not Just a Pickaxe.
and It's Not Actually Mepshit, But Rather His Soldiers of Terror Even Carry Firearms(Even Unused) of the 3rd Reich and an M16A1. Kinda Reminds Me of the Red Ribbon Army and the Rebel Army btw.
And With all That Said, Das Coalition Will Fall.

Well, the M16A3 is simply a worse C7A2, The weapon in Mepios' Das Coalition. Instead of Automatic it is Burst.. The Colt Canada C7/C8, Unlike the American original, Has several upgraded components, the ability to fire fully automatically, fully ambidextrous, low infrared signature and an extendable butt. In addition, the rifle can be fitted with a bayonet for close combat. Therefore, I believe that Mepios' Coalition would win.

Well I Know You're a Gun Nerd. But Even Though That Is All Said.
We Still Need to Fight the Worst Battle Ever, Das Coalition Will Still Fall
Along Side With Any Tyrant's Army Who Dares Bashes or Dis Us All.

Why Do You Type Like A Book Title?

In addition, For all of those weapons to be used a larger force would have to be in place, While ONE M16A3 would be used, Only one soldier would be in place. Machine Guns, Sub Machine Guns, and Rifles and well trained soldiers WILL beat one M16A3 in any scenario.

sorry, im a gun nerd

Nothing Beats the OG Colt M16A3.