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All the "programs" that exist here (the resource-gathering one, the monster-killing one, and this one, if it exists, the hero-boosting one) are simplifications for the map creators. Instead of 1000 slow units, you can put 100; instead of all the heroes, you can leave 10. Those who know different "tricks" will do well; those who don't won't even make it into the top ten!
P.S.
Let the organizers shorten the real-time and make the game more dynamic, because resource gathering and killing are essentially a waste of time. Killing 1000 zombies with a single sniper, for example, is not an indicator of a player's "skill"!!!
If there is a path through zombies that must be attacked with a ballista, and without this, it is impossible to achieve the best result, then those who want to win must attack them with a ballista or not play on this map at all. Most players choose the second option, and they are right!
And the presence of "programs" saves time, which is very valuable to me personally! I would rather play three tournaments with "programs" than one without them!