From what I remember, the old Pulsar had a 'saturate an area with shots' mode where it hit everything under a blast marker once.
Yet another version of the Pulsar (dependant on the exact rules for the cloverleaf template)...
Pulsar
Range: 96" S: 10 AP: 2 heavy 10, cloverleaf blast, primary weapon
Now, as far as I know, you roll to scatter the template, and then for each shot you roll a d6 to see which part of the leaf the shot hits, with each unit under that section taking that many hits.
This would make it pretty good against infantry. But against bigger vehicles it actually gets
more effective the larger the vehicle is as the vehicle will be under more parts of the template. Something like a Warlord is going to be under every section, so the chances are that a single Pulsar's firing will take down ALL the Void Shields and cause some damage on top of that. The
second Pulsar is going to cause it some serious grief.
Then boost the range for the one on the Phantom.