For the purposes of his post, Gunther is authorized to dispose the squad as he sees fit for defense against an enemy. 

I think we can assume that they have a field telephone rigged up as well. Whatever improvisations get played out ICly, I'll figure out a rationale for them anyway, so use intuition -- there may be artillery support to be had, though god knows the quality of that fire support, since we're talking about green troops and green artillerymen and green everything.