Which button layout is the best?

1. Is tactical the best button layout?
2. What button layout do pro CoD players use?

Is tactical the best button layout?

Tactical layout is recommended for those using a standard controller, as it maps your crouch/slide/dive button to the thumbstick, so you can be quick without ever needing to move your thumb.

What button layout do pro CoD players use?

Tactical is a common controller layout amongst pros, as the layout enables you to have agile movement. There are less limitations than the default layout, so the best controller CoD players can have great movement like keyboard and mouse players are able to have.