Just my opinion.....
I think a tactical knife needs to be a bit more ergonomic.
A guard would also help, even if it's just a small part of the blade sticking out towards the bottom.
OR, if you put ridges for your thumb,
and carved the handle toward the bottom, so it looks like this:
(possibly leaving a hump in the middle, like a busse handle)
.\_____________/.|
________________|
Then you might have a tactical knife.