I'm working on acquiring my first ground set, and I have a couple of questions I haven't been able to find an answer to. One, does the Integral Frequency Remodulation ability that you get from equipping all three pieces mean that you don't have to manually remodulate your weapon anymore while equipped? And secondly, if I equip a second weapon in my alternate weapon slot, do I lose the set bonuses if I switch to it?
The Integral Frequency Remodulation is an activated ability, similar to the abilities you would find from equipped kits and devices. It has an instantaneous use and 15 second cooldown. Borg adaptation will still occur as normal, but the instant-use remodulate ability reduces the amount of time you have to use to overcome it.
You can have any weapon in your second slot and still have access to the ability, you won't lose it when you have that other weapon as your currently selected weapon.
A couple of tips on the ground sets. I have bought both XII guns for my characters. The Maco gun is better at first because it is an awesome sniper rife. However, when you get use to it the Omega gun is a really fun machine gun like weapon. My tacs are either running Klingon Honor Guard (Klingon Tac) and My Fed Tac is running Omega. My engineer and sci is running maco. The difference between the sets is that Omega is better for damage and Maco is better for tanking. I think the Maco gun is better against the Borg and the Omega gun is better against other PVE enemies. The KHG gun is just a really tough shotgun in my opinion. I think my favorite is running my Fed Tac with Omega set and the Maco gun for ground STFs.