By tactical I assume you mean fullsized utilitarian knife with primary tool use and secondary defensive considerations, while having reasonable cost? Keep in mind that I'm looking at something with an open-carry, wilderness focus, not in town, but I would consider it small enough to carry on a belt under my jacket or blazer, or in deep pockets.
I'll be called cheap and old fashioned, but a modified Ka-bar mini-MkII with the leather grip (does crack or freeze to your hand at 30 below, doesn't get too hot in the sun). The changes would be pretty minor- sharpen and serrate the clip (on a clip blade, I would argue that is the best place for them so you have full utility of the plain blade without having them in the way), the tear-drop pommel that was developed for the Next Gen (lanyard hole), cut the top of the guard off and add jimping along the spine. I would stay with the 1095 carbon, but I would also refinish it with one of the teflon-based hard coatings.
Add a good cordura sheath with a kydex liner, and an altoids tin-sized pouch, secured with both velcro and a fastex buckle. (For what ever kit you want, but I'd go with a multitool or SAK and an Altoids gum tin with a ferro rod, diamond rod, some tinder, and some tiny odds and ends.) I wouldn't bother with a fixed belt loop on the back, but rather modified MOLLE webbing (no "blank" spots between the webbing spots) and a pair of MALICE clips to place your belt where you want it (high on the belt, low on the belt, rigged horizontally, etc).
Total package gives you a 5" straight blade, a 1.5" or so serrated blade, a light duty impact tool (the pommel), pliers, file, saw, backup blade (from the mutlitool), sharpener, fire starting capability.
In town, I would go with a varient of the Vic One-handed Trekker, with a plain, non-locking blade replacing the saw, a partially serrated tanto-type blade for the one with the opening hole that locks, fitted with slim G-10 or carbon fiber scales, and a pocket clip so it doesn't get lost at the bottom of the pocket.
EDIT: based on Websters, then definition 2(1). The historical use of the knife (not sword, but KNIFE) by soldiers and others in harms way has been utility. Most cutting chores are small scale actions serving a larger purpose.