RN012 - Sarika Arquebusier
Most of the DBN list I can fudge from my existing DBM armies - Ottoman Turks and various Arabs.  The exceptions are musket armed figures and artillery:
Compulsories
2 - Ms(M)    Janissaries    
1 - Ms(M)    Sekhans
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12 figures
Optionals 
0-1 - Ms          Bostancia guard         
0-2 - Ms(M)    Janissaries            
0-1 - LI(M)     Janissaries            
0-2 - Ms          Nizam                
0-4 - Ms(M)    Sekhans                
0-2 - Jg            Rayas            
0-2 - LI(M)     Derbents
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45 figures
0-1 - HA          French trained Art    
0-2 - FA(M)     Artillery
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So scouting around figure manufacturers I turned up the following:
(A)  http://www.timecastmodels.co.uk/og15renaissance/og15renaissance.html
     (Old Glory figures)
     Standard Packs contain approximately 50 infantry, or 16 cavalry, or 6 guns with 
     24 crew, or 45 foot command  figures.
ROT5      JANISSARY ARQUEBUS     
ROT6      JANISSARY MUSKET AND CROSSBOWMEN 
 ROT11     TUFEKCHIS/ARNANTS/IRREGULAR INFANTRY MUSKET & ARQUEBUS 
  
[
The pack size is obviously for grand-scale Napoleonics...still if I went for all the musket options!]
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(B)  https://www.essexminiatures.co.uk/collections/15mm-renaissance-ottoman-turk
     [
I think that these infantry are 6 to a pack]
RN05 - Janissaries, handgun
RN012 (
see top) - Sarika, arquebus (fez-like hat)  [may be usable as Qajar Persian]
RN013 - Arnaut/Martheloses, musket (turban-ish hat)  [looks slightly more irregular]
RN015 - Persian/Azab handgunner (different hat)
RNO17 - Artillerymen
RXE10 - Eastern medium bombard
RXE12 - Eastern light cannon
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(C)  http://lancashiregames.com/LG3/15mm-ottoman-turks.html
     (
Venexia figures.)
OT 23 - Janissaries with muskets (campaign dress) (8 Figures)
OT 34 - Serbian, Croat or Bosnian musketeers (8 Figures) [slightly different hats]
OT 41 - Heavy Artillery and crew (3 Crew & Gun)
OT 42 - Light Artillery and crew (3 Crew & Gun)
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More research needs to be done to find the best matches.  Once I have done that I will post again.