Tactical or not, stainless rules
Having bought my 45 Taurus in blued instead of stainless is something I frequently regret. Like when it was pissing rain in the PNW on a camping trip recently. I did not like the fact that my gun could rust simply because it was under my pillow in that humidity. It didn't, but it felt wet and cold everytime I rolled over and checked it under my pillow.
The stainless will stand up to more neglect and elements than any other material and still perform it's job when asked.
jeepmor