"Tactical" Lever Action? Hell yes.
Amateurs worry about hardware, pros worry about software.
Like anything else, everything has it's place, and more often than not, the quality of the man is more important than the equipment. I'm a Gulf War I infantry vet, so I am well acquainted with the AR style weapons. If I'm going to go into an unknown situation, I'm grabbing my Marlin 336 CS in .35 Remington. No, it won't fire as fast as an AR, no it won't reload as quickly, but that's not important if you hit what you shoot at.
I've attended a local bowling pin shoot occasionally, and I often use my 686 .357. Most everyone else uses slick .45 race guns, usually with hi cap mags. Oddly enough, since there are 5 pins, I win as many as I loose, because I have 6 shots.
My Marlin is as short and handy as an AR, and a 200gr SP is a serious problem if it's coming your way.
Consider me a charter member of the "Long Island Assault Rifle" Club.