This mapping will be taking much longer to make. I've never used Traktor, nor mapped MIDI in Traktor, so this is all a trial and error type of project. It will start off simple, but I will try to map as much as I can for you guys. 

I will try and figure out a good way to explain all the controls. lol. I'll "try".

::::This mapping requires a bit of knowledge about the Akai MPK25, and how to use its different pad and knob control banks::::

This is how the pads are setup, with 1-3 being at bottom:   10   11   12

                                                                                      7     8     9

                                                                                      4     5     6

                                                                                      1     2     3

The Knobs are set up like so, with 9-12 at bottom:  

1   2   3   4

5   6   7   8

9  10  11 12

**** the pitch bend wheel (the one on the right closest to the keyboard), controls the X-Fader***

Pad Bank A:

Pad 1: Deck 1 Play/Pause

Pad 2: Unused

Pad 3: Deck 2 Play/Pause

Pad 4: Deck 1 Sync

Pad 5: Unused

Pad 6: Deck 2 Sync

Pad 7: Unused

Pad 8: Browser Scroll Down

Pad 9: Unused

Pad 10: Deck 1 Load Track

Pad 11: Library Scroll Up

Pad 12: Deck 2 Load Track

Pad Bank B:

Pad 1: Unused

Pad 2: Unused

Pad 3: Unused

Pad 4: Unused

Pad 5: Unused

Pad 6: Unused

Pad 7: Unused

Pad 8: Unused

Pad 9: Unused

Pad 10: Unused

Pad 11: Unused

Pad 12: Unused

Pad Bank C:

Pad 1: Unused

Pad 2: Unused

Pad 3: Unused

Pad 4: Unused

Pad 5: Unused

Pad 6: Unused

Pad 7: Unused

Pad 8: Unused

Pad 9: Unused

Pad 10: Unused

Pad 11: Unused

Pad 12: Unused

Pad Bank D:

Pad 1: Unused

Pad 2: Unused

Pad 3: Unused

Pad 4: Unused

Pad 5: Unused

Pad 6: Unused

Pad 7: Unused

Pad 8: Unused

Pad 9: Unused

Pad 10: Unused

Pad 11: Unused

Pad 12: Unused

Control Bank 1:

Control 1: Deck 1 Volume Fader

Control 2: Deck 1 High Adjust

Control 3: Deck 2 High Adjust

Control 4: Deck 2 Volume Fader

Control 5: Deck 1 Filter Knob

Control 6: Deck 1 Mid Adjust

Control 7: Deck 2 Mid Adjust

Control 8: Deck 2 Filter Knob

Control 9: Unused

Control 10: Deck 1 Low Adjust

Control 11: Deck 2 Low Adjust

Control 12: Unused

Control Bank 2:

Control 1: Unused

Control 2: Unused

Control 3: Unused

Control 4: Unused

Control 5: Unused

Control 6: Unused

Control 7: Unused

Control 8: Unused

Control 9: Unused

Control 10: Unused

Control 11: Unused

Control 12: Unused

If I happen to make any changes, or fixes, or come across any bugs, I'll make sure to add it here