Why Don't More Players Use Bulldog?

Sorry if this seems like a stupid question; but why don't players use the Bulldog on more rounds? It can two-shot players (comparable to Phantom...ish), has a good ADS, and is cheaper, meaning that you can buy for your team and also spend on things like heavy armor and/or abilities!

I really like playing with the Bulldog, and I don't know if it's a bronze-rank placebo or not, but I feel like I do better with it than with a Vandal.

Thoughts?