Nerf guns/wars Texas size

The QA dept and our .net developers have ongoing wars with each other as stress relievers so they say.  I got hit in the eye by one of their bullets so I am not a fan but since then they cannot shoot down the rows between the cubes where unsuspecting people like me walk.  You can see one of the developers even has a huge shield.  The huge semiautomatic gun is QA's so you can see why the developers need shields.