T1 snipers + guards and maybe some mines if u have enough mun.
the sniper will be his death cause the refresh costs of a pgren are so high, that he won't have enough manpower and without t1 there will be no gren with panzerfaust and no mgs to suppress ur drunken conscripts
It won't kill always 1 man of a squad with full life. I think you have to see which unit is taking the dmg of it, cause a gren has a bigger chance to survive without losses than a pioneer
Have an eye on it play it defensive and retreat them if u see something that could kill it :*
place ur mortar always behinds something to make it harder for ur enemy to get it
I would play 3-4 cons after the third cons research molotovs and then try maybe t1 or t2 if u see mg spam or hard t1 from your enemy try t1 and get sniper.
if ur enemy is going for a fast flamer halftrack and u have at this time no command points i would prefer t2 for the zis. The medic Station would only ne usefull , if ur cons are rly damaged ^^ 250 manpower is much and at the start of a game to usefull to spend it on this abillity in my opinion.