
Here is a photo from the 1990 (likely August?) PMI / RPS North American Paintball Championships (scanned from the January 1991 issue of Paintball Sports International.

Judging from the paintgun (which I believe is a Rebel Executive) I would guess this player was on the Unknown Rebels out of Canada.
And below is the scan with the final rankings, PMI Piranha’s won, PMI Lords of Discipline took second and N.E. Grim Reapers were in third.
The ranking above lists the ranking from the tournament:
1. PMI Piranhas – $15K
2. PMI Lords of Discipline – $7.5K
3. N.E. Grim Reapers – $5K
4. All Americans – $2K
5. Gang Green – $1K
6. Master Blasters – $500
7. Florida Terminators
8. Unknown Rebels
9. Werewolves
10. Court Jesters
11. Lock Out
12. Iron Cross
13. Boonie Rats
14. Bad Company
15. Phoenix
16 L.I. Caretakers
17. Beast of the East
18. Tac
19. Farside
20. Swamp Rats
21. Splat
22. Plague
And a recent thread on the APP loader sitting on top of the Rebel Executive marker that the Unknown Rebels player is holding.
http://www.mcarterbrown.com/forums/ask-experts/243776-sight-feeder-what.html
And find this post on facebook at:
https://www.facebook.com/baccipaintball/photos/525655260861787