... for the latter, there's actually several different styles of WC3/SC2 custom map that indulges. Off the top of my head you might check out probe vs zealot or evolve in the SC2 arcade (bonus points, the starcraft arcade went F2P a year or three back, so it's costless other than the 20 gigs or so of HD space), hunters vs. farmers in WC3 (if I'm not misremembering the names, anyway). Buncha' stuff like that, variations on similar themes... want to say the general style was usually referred to as runner or tag based maps, but I never really played the things and couldn't say for sure. Lot of zombie related maps that largely work that way, too, though they tend to make early engagement not quite so deadly.
Basically if you're looking for that sort of early game instakill/late game god mode style of thing you might want to dig around warcraft 3 or starcraft 2... maybe DotA 2, too,* and the player made content/custom maps/modes specifically. Might take some finagling to get a WC3 game going, though. Still a playerbase faffing around, but think it's more through 3d party type stuff nowadays.
* Know there's been conversion and tentative work with custom map type junk since they opened up the editor et al, but haven't been paying attention and can't say how far along it is.