So if you have a bomb of C-4 mixed with C-5, the C-4 blows the air out, creating negative pressure, blowing the C-5 up?

That would be cool.

lol, C4 kind of already is, if u put alot of VAc around C4 the low pressure then turns into highpressure(cuz it attracts pressure) which in turn blolws C4 up

@webb
It doesn't blow C-5 up.