Well, a Blast weapon cannot target a miniature to begin with so...
Do you mean there should be a penaly to place the Blast template so that its center doesn't coincide with the one of a miniature's base? Or should the center of the template being anywhere on the miniature's base be enough?
What about Template weapons? Should there be a penalty if the template is not centered on a miniature's base? (since they don't roll to hit, it would have to be something else)
Basically if Blast weapons never practically get affected by cover (which is what RAW seems to say) they're too accurate. Even with a D3+3 Scatter mechanic, HITs add a 5/36 chance reroll to Hit for every miss. If you compare a Ganger with a Bolter and a Ganger with a Grenade Launcher wanting to hit a model in Full Cover (-2 to Hit) without aiming at ~18" with a flat -1 to hit for GLs.
Bolter hits on a 6, or ~17%.
Grenade hits on a 5 or 6 and also hits on a Hit (that isn't a Dud). 2/6+4/6*1/6*5/6 = 77/216 = ~36%
So even with a flat -1 to hit a GL is significantly better, at range, at hitting a model in Full Cover, is slightly better at hitting a model in Partial Cover, worse at hitting a model in the open and is the only 24" ranged weapon capable of hitting a target that is fully obscured.
Inside 12" a Boltgun is almost as good but still can't hit multiple models or a target that is fully obscured.
Hitting several minis at once and bypassing cover is kinda the points of the Blast and Template traits so I don't think it should be penalized. Credit cost should be adjusted to account for it though.
That has the effect of making things that are extremely powerful extremely rare. I think GLs should be more common (ie cheaper) than Plasma Guns. But that requires toning down their effect. The price point I'd like GLs to be at is 55pts + Grenades (which puts a Frag only GL at the same price point as a Combi-Needler).
There is, however, another problem about grenades that hasn't been mentionned yet: walls. They stop scattering. If you place the template's center in contact with a wall, there is roughly a 50% chance it will stay in place no matter what is rolled for the D6. This become a big problem when your intented target is 1.5" away of the wall, as the grenade will either stay in place or scatter towards the target (with a very good chance to hit it unless a 5 or more is rolled). And don't get me started about corners. It may not be as big a problem in SM as it is in ZM though.
"Walls" aren't a thing in SM RAW (unless you deliberately define something as being a wall), so at the moment nothing stops the scatter in SM.
In ZM I have no issues with walls increasing the accuracy of Grenade Launchers / Grenades. ZM is supposed to be close ranged and brutal. The primary beneficiary of this is Grenades not GLs (GLs are easier to 'get a hold of' in ZM where most fighting happens in a positive range band).
Where I think the ideal balancing point is that you want Heavy Stubbers in your gang for 3D and Templates/Grenades in your gang for ZM and GLs strike a good at both but (with a decent selection of Grenades) extremely expensive. I think the TTS Home Rules of 160pt Frag, Krak, Smoke GLs is about right (80pts + Grenades) for RAW but probably still a touch undercosted given how scatter works.
I love how a small discussion here makes something better than what GW puts out in print.
-blast must touch the nearest target (unless cool check passed)
-scatter 3"+D3"
-static negative modifier to long range?
If you're going with 3"+D3" scatter you need to add a Short Range to Grenades with a +1 to hit, say Sx1.5. This just mitigates the risk of Grenades scattering back in on the thrower. And I don't think anybody would really argue Grenades are OP at the moment.
Side note: I think the plasma and melta gun points numbers were just thrown out there (wild guess) for the initial game release and are likely to change as more weapons are added to the game.
Agree. Plasma Gun is probably about right at 100pts if it didn't have +2 to hit at Short for LP. HP could do with getting either Blast or add Rapid Fire on as well. I think a 65pt Melta is probably actually about right: I'd consider it for laughs / Sabotage at that point. But a GL with Krak is probably a better answer
