I think there are few vehicles produced specifically for this limited role today IFVs give infantry significant integral fire support especially the Soviet designed BMP with its 73 mm gun launcher Modern main battle tanks fire a large HE round and large forces employ tanks and infantry together The Soviet Union for example deployed the 2S1 and 2S3 howitzers with forward units to provide heavy direct fire support but also work as a general indirect fire artillery piece fulfilling the role but more flexible Z 2006 09 03 12 42 Z