First, thank you for making some real changes to the docs and adding some much needed indirect to the Brits. This is the first patch where I've really liked what I'm seeing for them, and gives me a reason to be excited to play them.
Immediate thoughts:
1) I'm not sure Mobile Assault needs the Land Mattress *and* the Mortar. Why not take advantage of this slot to use a unit that is only available in a single other doc, like the Valentine or Tank Hunter Sections? Or an ability like Smoke Raid Operation?
2) I'd really like to see more access to the Vickers outside of just Tactical Support.
3) Reworking Raid Sections as an alternate mainline is probably a good idea. Surprised there is no mortar support here even with the Smoke Grenades.
4) Moar indirect! Extra mortars are good, but it would be nice to see the Land Mattress and Sexton available in other docs to open up more team game diversity.
The Land Mattress is really bad in it's current state. Both it and the Sexton need buffs so I'd rather not see them anywhere else until they are improved.