" ... " 

" If that is what you want... Let us form a team of people and destroy those who oppose us "

" Yes, on brother. Let us lead a revolution against the enemy! "

Who's there?

Okay khargos, come in... I'll point out what to get, and warn you if someone sneaks up on you... I toss Khargos a walkie-talkie. Do you see Kyleh2486 Grab his jetpack 

Next, get a shopping cart and load everything that could be used as a weapon. Grab a motor too. Soon my friend, we will own this place.

Good, the next step is to find out where the people who started this are. They aren't on the tvs so they might be at another walmart... Sadly we are stuck here until almost everyone dies or escapes. Now about the shopping cart, we will build a battle kart using what you gathered and wreck havoc on everyone else

 Great Idea! That is why you are the first mate! 

Daryll_Goodfellow fashions a nice little spear and grabs a trenchcoat from the clothing section before hopping back into the battle kart

Attaching makeshift spears/knives onto the front of the kart this duo start riding around crashing into other people within walmart, perhaps recruiting some. 

The battle Kart is complete

Kliff shows up with a literal tank (Hehehe plot twists)

I, being the idiot I am, Decide that yes. You can buy a tank at walmart, and therefore grab a sword grenade off the nearby grenade rack and prepare for battle

I, having just received my copy of Rime of The Frostmaiden, use the Scroll of Tarrasque summoning, after digging out and camping in a bunker, to wait until the chaos is over.