Help..

Ok I have realised that my game performance is poor due to me not having a medbind.
I have looked in http://www.dxalpha.co.uk/kb/improvements/most-popular-binds and I'm lost, I need a mebind for the numpad number 0 wich when I press it it auto uses my med and then autmoaticly changes my active weapon to assult rifle wich is in belt 2 for me, I would appreciate it very much.
Thank you, Tom
I have looked in http://www.dxalpha.co.uk/kb/improvements/most-popular-binds and I'm lost, I need a mebind for the numpad number 0 wich when I press it it auto uses my med and then autmoaticly changes my active weapon to assult rifle wich is in belt 2 for me, I would appreciate it very much.
Thank you, Tom