DEEP SPACE NINE: "Field of Fire" - REV. 11/23/98 - ACT ONE 9. 15 CONTINUED: ODO That's correct. SISKO Chief, did you ever hear of the TR-one-one-six rifle? O'BRIEN (nodding) It was a prototype. Developed by Starfleet Security to operate in energy dampening fields or radiogenic environments. SISKO That's right. Anywhere that a normal phaser would be useless. If I'm not mistaken, the TR-one- one-six fired a chemically propelled tritanium "bullet." ODO You said it was a prototype -- were they ever mass-produced? O'BRIEN No, Starfleet abandoned the TR- one-one-six in favor of regenerative phasers. SISKO That doesn't mean our killer couldn't have gotten hold of the rifle's replication patterns. O'BRIEN But only Starfleet officers have access to those files. SISKO Disturbing thought, isn't it? BASHIR Starfleet officers don't go around murdering one another. ODO (correcting) Not usually, anyway. O'BRIEN (off his tricorder) That's odd...