I doubt I'm the first person to think of funny ways to (mis)use epsilon leader (actually I'm willing to bet Sable Gryphon has something like this scribbled in a notebook somewhere), but I thought I'd share one example I'll call Epsilon Shenanigans for kicks and wiggles.

Here's the basic setup (link to yet another squad builder): Two Lambdas with HLCs are parked in a corner, with Epsilon Leader behind them. The Space Cows reposition as necessary then do red 0 maneuvers every turn. A tanky Epsilon Leader clears their stress every turn, allowing them to do 0s again and again. Add in some stress-agnostic firepower upgrades (FCS, Advanced Sensors, gunner, Palp) and wait for your opponent to come to you.

The specific upgrades are subject to change, but you get the basic idea. More of an April Fool's list than anything else.