Here's my BO.
Gren Gren MG42 MG42 Mortar BP1 T2 Pak Pgren
The idea is that for the first engagement you should put both grens together to form a full squad of 8 men. You will sacrifice map control for this but if he's not smart enough he will lose some manpower and some map control as well. The double MG42 is there to support the grenadiere and defend a place. One for defence, the other following your grenadiere. The mortar will kill the Maxim gunners pretty well. If he gets a mortar, you kill it then take it for yourself to form a mini mortar battery. You can kill Maxims even easier. Pak is just for reassurance just in case he goes down to T1 instead for sniper. The Pgrens only serve to make it worse for the Maxim. Grens draw fire, Pgrens flank and destroy.
Steel, this BO really restricts your capping power.
Do you change it with different 1v1 maps? (Do you usually play 2v2 or team games?) How many strat points do you usually hold on to? 3+ a fuel point? Do you push for fuel with your double gren + MG, or do you push for cutoff? Or both?
I prefer 3 grens and 1 mg42; I change that depending on the situation; sometimes a sniper, sometimes a second MG or a mortar. Sometimes I gren spam and get five (like Cataclaw).
My play style is a more mobile one, with less emphasis on combined arms.
After the spring patches of 2014 I built three grens and two PGs. My rank went up about 1,000 and I ended many games before 20/25 minutes. Gone are the glory days...
In general: I have found that the gren/con matchup is much more even than it was, so mp drain is more of an issue now. The changes focus more on combined arms, which overall is a good thing for the gameplay.