i have a question which d is the most economical to do i would be happy if it would be plasma canon.and is it bether to do stronger d whit high tech or there is another way to use stronger d.please help

Plasma Cannons can be strengthened with plasma tech AND weapons tech, however they are not the most economical. That title belongs to Light Lasers

Also, defense, like fleet, relies on weapons shield and armor techs for their combat ability.

ty i will need to move my gray matier sometimes.oh and which lvl of plasma tech makes plasma cannon bether to build

that i don't really know, it gives a 5% boost each level

i will calculate