So this is a continuation of a mechanical concept I asked about previously, but someone asked me exactly what I was trying to do and I responded with a rather long comment, linked here if you're interested in the full details:

https://www.reddit.com/r/DnD5e/comments/zqb7ny/artificer_infusion_returning_weapon/j0zq4tn?utm_medium=android_app&utm_source=share&context=3

That said, I am curious if there is any other optimization anyone else can think of with the concept I have going here or something similar?

For context, I am participating in a 1 shot with a DM that's brutal on combat. I currently have a Custom Lineage Charater that I'm just calling a Human ( 2, 0 Race modifiers and Gunner as the feat) the character level is level 8 and I'm currently an Eldritch Knight Fighter [6] and Artificer [2]. I multiclassed into Artificer to get some of the unique infusions, primarily Repeating Shot to make a Heavy Crossbow compatible with Extra Attack, as well as some utility with lower level spells and cantrips like Guidance.

I initially chose Eldritch Knight Fighter because it seemed like a nice synergy, but I only have access to level 1 spells right now so I'm not sure that it's really worth it when I'm already getting that baseline of utility from the 2 levels into Artificer. For the purpose of ctrl atl del foes with a heavy crossbow (with the Sharpshooter feat too) is there any other route, combination, or subclass of Fighter that you'd recommend? This is basically a theory crafting and brewing of ideas for an optimized character for a 1 shot. Thanks for any ideas or suggestions in advance 😊