you seem to have lost the plot here henry.
Spyder, or Tippmann.
Didnt know they made cockers!
they are two slightly differant markers.
The tippmann has the advantage that it could withstand world war 3 without any problems. But the spyder is REALLY easy to repair should anything go wrong. And looks lot more spangly.
They both shoot paint out the end of the barrel when you pull the trigger. they are both upgradable, to varying degrees.
But it would be better to buy one, and then when you want something that shoots better, sell which ever you get (or keep it as a spare) and buy something with more beef to it, like an impy or cocker.