Against infantry, I can see Pask being viable. But against AV 12, not so much. The Punisher is AP-, meaning it will need a roll of 4+ to do anything more than smudge the paint. That is about 1 in 20 shots. Two Hydra's are better, and MUCH cheaper.
Well, by my math it hits 19.314 times, which is 3.22 glances which should result in at least a stunned result, and 50% of the time a weapon destroyed.
You make a good point though, and I'm not saying its the best thing ever for that role, just that it is a lot more useful than it would appear at first glance. The main thing I see is for killing infantry and
MCs. This tank just destroys them. An average of 4 wounds against a tough 6
MC with a 3+ save.
MC's have always been difficult for guard, at least my guard anyway.
19.314 hits results in about 11 wounds against a toughness 6 critter, and about 15 against a toughness 5. That just plasters Daemon Princes, most greater daemons,
TMC's, avatars, etc. Even a Wraithlord will take about 6 wounds, leaving an average of 2 unsaved. The best thing is that it wont matter if they are in cover or not.
We will see. I want to like the tank because it will look so cool! But often, things on paper don't always perform as well on the table.