I´ve only played a few brits games so far in the new patch and JLI spam felt pretty op against brits.
Sector assault is in my opinion a bit overtuned due to the fact that the AOE is way bigger than the UI symbol in the miniap suggest.
I've got multiple squad wipes in my base sector.
Just tested the British Artillery Commander and especially the Valentine feels still weak, in my opinion in need one further buff either better ai capabilities, come at 4 cp as an alternative to the AEC, become cheaper -> 60 fuel or get better vetrancy bonuses like faster firing and better accuracy.