There's so many other random factors that I don't really think these bulletins have such a huge effect anyway.
This is largely why I don't play with bulletins 95% of the time. The combat ones don't make any real difference. Better positioning and engagement matter more.
The bulletins that I like are cost reductions and minor quality of life stuff. For example with USF I use 10% faster riflemen/rear echelon build + reinforce, 5% cheaper support weapons and 10% cheaper weapon racks. But honestly I doubt that even accounts for much, maybe a few seconds on build time and 0.5 second on reinforce and a bit of manpower/fuel saved. (Might add up to 100 mp by the end of the game.)
Most of the time when I use bulletins it is as a joke. i.e using 10% cooldown reduction on jagdtiger call in. As if I will ever have enough money in the bank + suicidal behaviour with my jagdtiger to take advantage of that.