It is already at Level 1 with the construction of the Tech Center.
Trivia
The Jackrabbit used to be called "Dragon Runner" prior to Public Beta.
The Jackrabbit has the same armor type as the Colossus and the Behemoth, thus making it very resistant against Tank shells, but vulnerable versus bullets.
The Jackrabbit is considered a Tank due to it having tracks instead of wheels.
Pixel Sheet Code : 10.v2
Quotes
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“
The small size and low profile of Jackrabbit makes them very difficult for tanks to damage. These medium-armored drones are mounted with M60E4 machine guns for anti infantry firepower.
”
— In-Game Description ( Levels 1 - 9 )
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The Jackrabbit is very difficult target for enemy tanks, exploiting this the jackrabbit has been reinforced with additional armor to minimize damage from shells that do find their target.
”
— In-Game Description ( Levels 10+ )
“
SEARCH AND DESTROY - Time to hit the road, Commander. Jackrabbits are ready to be produced. These machines are pesky little destruction critters.
”
— Unlock Message [src]
“
ALL BITE NO BARK - Commander, these worthy machines are ready to run.
”
— Level 10 Message
“
MISSION - Time to hit the road Commander. These Jackrabbits are pesky little destruction critters.
”
— Mission - Search And Destroy - Complete
“
MISSION - Commander, there have been many mechanical devices referred to as "rabbits." Human women may prefer one type of rabbit, but I prefer the vehicle of destruction you can now train.
”
— Mission - Double The Fun
“
MISSION - Beautiful, Commander. I can't wait to watch these animals hopping up to enemies and destroying them.