BO3 - Moving around more fluently

So maybe this is a dumb question, but when I watch some pro players via YouTube or what not they seem to just glide around the map. I heard there is a way you can slide further and faster by both jumping and sliding at the same time (both controls held down). Is that true?

Any of you BO3 fanatics got any tips on how to glide through the map.. is having height on your enemy always a good advantage, should you wall climb as much as possible?

Just curious on your opinions if anything really..