Means cliff is gone, and when he starts looking for him , those guys arive, they start distruction, he gets mad because they are destroying his and cliff's place, so he fights them and the story follows the way you know it ...
PLS TELL ME CLIFF'S BELONGINGS ARE LEFT INTACT
There are no belongings, Leon considers that place as his and Cliff's , so he doesn't like them destroying the planet, or the earth or anything there. It's kind if an open ending if it is the actual ending for this story
IM CRYING, FUCKING DAMN IT
WTF YOU MEAN TGE END