One heavy shot, with a long reloading time. It takes about a second after firing to shoot, does a bunch of damage on a direct hit, but can skim a few times across the track before becoming destroyed itself
fires slightly slower, but is accurate, has good lock-on, and perhaps has a random secondary effect like an explosion or DoT.
Anything hit by this becomes unstable, adding a 1.5 second delay to their inputs and some wobble to their steering for 6 seconds on each hit, but it can shoot once every lap, or every 3 minutes, whichever happens first.
Moderate fire rate, very low damage, designed to scare rather than harm. The longer this is hitting a vehicle the more damage it does, with a minimum of 0.5% total health per shot, to a maximum of 2% total health per shot, at 6 shots per second, and taking 45 shots to hit full charge. Every 0.5 seconds where a shot doesn't hit the enemy the damage will decrease by 0.02%. Has a 70 bullet capacity.
High fire rate low damage gun field civil war era Gatling gun with a huge magazine used for shredding enemy health bars. Limited range as the smoothbore barrels lead to huge bullet deviation
On each side of the vehicle a rifle from somewhere around the 1880s gun is strapped on. Medium damage with a moderate fire rate (pairs well with Arthurs passive) Short range harassing weapon built around the idea of chipping away at enemies whilst waiting for your large weapon/Character ability to be ready.