Re: smart bullet weapons modeling
Once you get to the point where the missiles are doing things like that, you might want to consider buying them as Followers or a Summon instead of as a given Attack Power. That way, you just program them with their orders and send them on their way. The Ultimate Vehicle has examples of this, though they are larger missiles than you would be looking for.
For the stunt with the missiles killing the officers, I suppose you could take Area Of Effect Radius, Selective, and several Combat Skill Levels with the Attack so that they are likely to hit. You may or may not also need some kind of an Enhanced Sense to spot the victims, only for targeting them.
The Kill Everyone In 2 km stunt is a straight Area Effect attack, possibly with Hole In The Middle (they don't attack the people near the launch point).
Both of these might also have Limitations for the time it takes the missiles to reach their various targets, something like Extra Time: Missiles Travel At 100" Per Phase, minimum of one Extra Phase to reach targets (-1/2). Also take Can Be Individually Missile Deflected, probably a -1/2, if such a Power exists in your campaign.
Any Champions game can be improved by dropping Man Cactus into it.
Any Fantasy HERO game can be improved by dropping the Hand of Doom Tavern into it.
Any game can be improved by using the HERO system.
6. Because I want my sentient binary load lifter.
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