Nice work. I know If it ain’t broke, don’t fix it. That said, I would recommend watching Mr. Olsson’s video from today. For the proto node, he went Speed Serum and switched out tiny shock for Remote Defib and went from mid-19 to rank 22 with a 15x win streak. It was pretty cool and he broke down nearly every hit and enemy replay. Lots of good information. Convinced me to get the Serum. Keep at it!
If you have the excess keys go for it. for me bullet Seeker attacks are tricky and I would Fizzle. I would focus on unlocking the other extra Nodes first like GBE, TH, proto Weapons Nodes and completely max out at 6ER. from my experience of being a bad Seeker player w no Instant Training 😅.
For seekers you really need to have serum. Plus I find attacks like he is using are more reliable than seekers. I am not great with them, but those compacts go up in flames with the serum attacks.
It is funny you mention remote hack because on my bomber account I unlocked remote hack and use it to take out big items like grapplers, SLS, blasters, DC or anything else that is an issue.