Great response bud, really providing insight into his question.
I would say that as Brits you need to hug cover. There is no other option until you get some sort of small arms resistant armor on the field. Aggressive British play in the early game does not work 80% of the time. Sniper works wonders in helping you win the infantry war, especially if he's backed up by your sections and vickers. I find that the sniper really is the key to winning early-ish engagements.
I personally would not go for a Bren carrier unless you have good micro skills and know when to engage and when to back off.
Id say Brits are super conservative Ostheer, hug to cover and dont overextend, turtle forward with Vickers and secure ground with sandbag tommies. Gain mobility and flexibility with AEC