Evaluation maps and transfers for free loop spaces II

In our previous paper, we constructed and studied a functorial extension of the evaluation map $S^1\times \mathcal{L}X\to X$ to transfers along finite covers. In this paper, we show that this induces a natural evaluation map on the full subcategory of the homotopy category of spectra consisting of $p$-completed classifying spectra of finite groups. To do this, we leverage the close relationship between this full subcategory and the Burnside category of fusion systems.