Well I personally hate the way you word it... but yes, that is generally how alphas work for me:
alpha1 (or base) is the general blockout
alpha2 (the REAL alpha) is usually a total remake of 1, carrying over ideas that worked (let's be honest, the last point worked pretty well in general, with a few things needing changes) and reworking everything that didnt.
Beta
RC
Final
Anyways, I do intend to make the map larger, and with that, lower the abuse of death pits (low fences too). Flank routes are being drawn as I type, literally. You can (I hope) look forwards to ~4 attack points for the last point, some more catwalks, and more accessible buildings around cp3. Adding a window route for point 2, unsure as to what else I can add there, but I'm still thinking.