As per title, I'm in a mid-way K2+SE game. I'm at 82% evolution. I'm having trouble dealing with the hordes that make it to my walls and explode, taking out large chunks of defenses. Then I thought perhaps I'm meant to use Rampant Arsenal when I'm playing Rampant.

I notice in the tech tree that my previously done weapon researches (bullet damage, laser damage, etc.) are no longer there, replaced by new tech left for me to research coming from RA. But when I check my bonuses, I still see the +80% bonus to bullet damage. Feels like a bug, I don't want to completely overpower myself and unbalance the game.

Can I add this without causing any weird effects?