- Nerf tulip. Less damage or make it only fire one rocket but cost less for the same cooldown.
- Increase rate of fire, so it's slightly slower than Jackson (0.5 or 1 second slower)
- Decrease shot damage to 160
- Increase penetration a fair bit
Basically, the Jackson and Firefly will be complementary TDs for different tasks, with the Jackson having better damage but lower penetration. The Jackson is better at hitting Mediums, while the Firefly is better at hitting heavies. The Firefly will also have more health and better armor, which along with (nerfed) tulips justifies its higher cost despite having worse DPS against mediums. This would also be "more realistic" in some sense, with the FF's 17 pounder being more effective at armor penetration, particularly with APDS, but using a smaller calibre shell (thus less damage per shot).