Standard TFT distinguishes between bows (high rate of fire, low ST requirement, low damage, bow talent) and crossbows (low rate of fire, high ST requirement, high damage, crossbow talent). A repeating crossbow is a crossbow that sacrifices damage to get rate of fire, so it would probably look a lot like a bow, except for using the crossbow talent. At the level of resolution of standard TFT I think it's possible to implement but would look too much like a bow to have much impact.
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David