Just did mission 18 on Brutal (took me 2 hours to defeat this one and find the right composition)
* Let's just start with a question, did you put double damage units on the various bases? Because i saw a siege tank (on one of the bases without minerals) do more of 100/200 damage to my hero with a single shot, fucking up my entire plan of kill everything and then plant the virophages...
* Don't know itf it's intentional but every BC i met did yamatomy hero whenever he was on range, putting it as the highest priority target, half of the times killing it as a consequence... Don't know if it's intentional or not
* Very hard and fast paced mission btw, I tried Ultralisks and it was a godawful idea, way better keep spamming free banelings, the real joke on this map is the free Raven spam on the mid-late waves, i counted like 6 missiles at once one time (making impossible to dodge everything)... Since this gratuitous AoE spam i went for hydra/roach/ling/bane/queens so to mitigate as most as possible the seeker missile shots and have a quick army that is easy to refull with new units... For the whole "spread creep" question i solved it with a Creeper sawrm host, so i didn't have to waste money on nydus worms or wait the killed creep tumors to grow again