Not to defend Ullumulu but these are not all weaknesses.
It's shocking how little you actually know about the Brits. Trenches are essentially useless against CQB infantry and take time to build in friendly territory, so they slow down your initial push too much to be of any value when they're needed most. I'll grant you the Vickers synergy but I also think that the vet 1 extra range should be taken away.
I still feel Tommies should get the Heavy Gammon Bomb as a snare and not a useless pseudo-satchel. Either that or they should reword the description of the ability so it's not a blatant lie. The sniper also doesn't have a stun shot, and their critical shot (which only disables turret rotation on anything above a StuG and doesn't even deal engine damage to the aforementioned) requires vet 1.