Allegiance: Autobot
First toy appearance: late summer 2001

Other appearances: There is another TF which shares the name Crosswise, an Autobot 'monster hunter' released in 2005, part of the TF Cybertron line.  Clearly the creators of the toy line intend for us to think of this as a different individual with the same name.  There have been no other characters with the name W.A.R.S..

What would these characters have looked like in Beast Wars/Machines CGI? 
This art from the japanese cards gives us a glimpse!  Ah, how sweet it would'a been! :)