As the title says: What has been your worst investment of Sc/Certs? On the flip side: What has been your best investment of certs/SC? Personally I feel that my worst investment was the AV turret. Maybe I'm not good with it or am not using it right but I feel that I rarely get the opportunity to use it properly. I feel that while using the turret I would be better put to be doing something else (laying mines, shooting infantry, giving ammo, repairing, really anything else). I would have rather used the SC for something else. My best investment, by far, has been the heat turret for my lightning. It makes such a huge difference and I find that I survive so much longer because I can kill enemy tanks faster/damage them faster allowing myself the opportunity to repair.