Manbearcat
Legend
EDIT: I've just read @S'mon 's and @Manbearcat 's replies. I'm guessing that I'm a bit more "forceful" in my tactical metagaming than those two.
I may not have conveyed precisely what I was meaning because:
EDIT to the edit: For clarity, generally when I'm metagaming NPC/monster tactics I'm not doing it to softball things, but to hardball them. In 4e I find the game tends to work better when you push the players hard.
is exactly what I meant. I don't "save the wizards from the archers" or "softball" encounters or "massage enemy tactics" to prevent Bobwizard001 turning into Bobwizard002 every other session. I make it as difficult as I can, comply with the the rules, stridently regard fortune resolution, and keep the genre-relevant tension on the PCs in any encounter I do (remember the burning inn encounter from some time ago?). I don't worry about my players' HPs, surges, defenses. I generally go for the kill and try to do things that make sense, are fun, and cause the situation to change. Obviously, you're having to make catch-22 decisions all the time in 4e and I'll mix those up to keep it fresh. I don't want to just violate marks or control effects (triggering damage) all the time as I want to allow those PCs to flex their control muscles as well as their damage by proxy of control violation. However, I violate them aplenty and get intentionally whacked for it (because its sensible in the situation or it would just be fun for my players!). In other words, this:
When choosing what enemies do, I keep in mind ingame/fictional considerations (like the sort that S'mon emphasises) and "story" metagame concerns (like what would be fun/dramatic) and "tactical" metaagme concerns (how can I put more pressure on the players).
These aren't mutually exclusive, of course - often (i) and (ii) overlap, for instance, if a sworm enemy confronts a PC, because there is both an ingame reason for that enemy to attack that NPC, and it makes for good drama too; and often (i) and (iii) overlap, because intelligent enemies will try to maximise their tactical abilities. But I have a tendency to let the metagame considerations do a fair bit of the leading here - I can retcon in the fiction if I fell like I have to!