I think that is a great raw bass track, aside from the obvious timing issues

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The reason I could see it being a problem to mix is because it has a lot of body; you've got a very broad frequency spectrum there with a lot of information - so your mix could have some masking issues.
If it were my track, as you requested, I'd do the following (if it was for a hard rock mix for example...)
Run it through a Decapitator and dial in a gruesome harmonic buffet, then roll everything back and make sure the sound isn't too wet. I'd probably have the tone bring a lot of the high mids forward.
I like to multiband comp my bass tracks, mostly to control the 180-250Hz area and stop rouge notes causing havoc. I also like to have a fast attack/release and high ratio on the sub 100Hz material. Anything above 1.7Khz-ish will have a slower attack to let the notes get some 'click' definition.
See how it sounds with your mix - you'll probably need to EQ, but make sure that you do this while you can still hear everything else. You'll dial in a tone that works with all of your instrumentation much faster.
Sometimes, if the track has guitars and bass that follow a very similar musical path, I'll send the guitars and bass together and run that through some kind of distortion too, and bring that up in the mix.
It's a hard nut to crack.
