I cobbled some sort of post-apoc/survival inventory with items I have at my disposal IRL.
Since I practice Airsoft, I have some of the more useful military gear, including the machete.
I equipped the G3 since it is the main assault rifle used by the military in Portugal. But it could also be a G36, FAL, M4, MP5, altough these are less common since they're used by Special Forces, Commandos, GOE and Marines. Plus, 7.62x51 ammunition is far more difficult to find comparing to 9mm.
Any Police officer has a Glock (17 I believe) so that wouldn't be hard to scavenge.
A regular hunting rifle or shotgun would be way easier to find, but those are more common in the farmlands.