TYVM, ppl.
Tried the tractors, sure was fun:) How many tractors would stop a Battleship? I can send two so equipped Scarabs right now. A Kraken would be too slow, I'd wager and a Dragon - well, that'd certainly stop anything with 4 tractors and maybe the worldmap, too.
As for the shotguns, I do recommend the O.G.R.E. beastie with N-Shells - kills a star god with a burstfire for me. And also the Smasher. Shotguns are great vs Zombies, as well, especially with incendiary/nuclear shells - OR, the Death Blossom SMG with inc ammo from a closer range, autoshot (8 bullets). I think that Solrius Scorch himself posted once, that it's a beautiful weapon. SURE is, for me. Otherwise a Lasgun with AP ammo for longer ranges, or Heavy Particle Accelerator or Trishot Plasma Rifle as well.
TYVM for the website, didn't know about it. I hang only here.