Here's the shape in which i'm planning to include nullbot in one of the upcoming betas.
This release includes the remake of the hover personality (available in nullbot2 and included in warzone2100 v3.1) on the nullbot3 engine. Perhaps the personality needs a better name, because it's become clever enough not to use hovers on land maps and on pure-air maps, so it might break your expectations if you expect the AI to be as stupid as the caption says (: anyway, hope it works.
And i tweaked the early game behavior a little bit to adjust to the balance reverts. Now it should start much more sensibly/aggressively; machinegun-based personalities should rush ahead with mg viper wheels, flame-based personalities would tech faster in early game, and the turtle AI should now grab more land and try to set up more defenses, without worries of running out of power.