Again I suggest adding a couple points to the base static damage bonus. I'll be testing this soon as my DW game is going up against some CSMs for the first time since we implemented errata rules.
And as always if the players feel likely to encounter such enemies on-mission, requisitioning appropriate ammo to better deal with them.
The biggest issue with DW is and has been the first couple books coming out before BC/OW, the later books coming out subsequently and trying to adopt some of BC/OW game design without implementing effective errata to bring the prior books and mechanical concepts properly in line. Also FFG being bound to the terrible issues in DH 1e for all its subsequent lines.