Para macro

Hello.
Can anyone explain me what is exactly para macro and what does it do?
Heard that some guys are using it.
Thanks

Macro+ Para. You should probably know that a Para has high attack but high recoil. Macro, is usually a program, that gives user unfair advantage over others, by limiting the recoil and spread. You can practically shoot perfect, and with Para, it is basically a one hit kill.