You know, I kinda wish Germans had infantry based recon. Doing recon for PaKs with a scout car means the scout car usually gets killed by the incoming tanks.
Don't rely on bulletins, as others have said.
Get a shrek PGren and a half track as soon as possible, but don't charge the shreks in. Keep them back to deter flanking. Keep them topped up with the HT. Throw in a Gren for a faust to prevent escape or to slow down a second enemy tank and to take a forward position to act as scout.
Scout car with spotting scopes.
Or elite troops vet3 scout car(which got great synergy with invisible vet3 pak).
Other then that, infantry should be before it providing los. Don't sit these grens doing nothing.