Your video stream is Ninjarose, right? I took a look for awhile & skipped to the moments the team got all incapacitated on map 1. It looks like your team formation was easily spread, so probably that was what made it feel like the campaign was difficult. This campaign could be handled quite well with a close formation covering each other while staying on guard with one or two leading the way. I never have any problems in playing mr. Daywalkerdave's mashup campaigns, as the difficulty is still playable (not too hard but not too easy either) with right strategies. There are many custom campaigns that are more difficult than this one, with more insane horde festivals. Probably you could have been more frustrated if you had played a campaign like "Questionable Ethics" or "Pasiri", as the horde festivals there are more insane, & the expert difficulty can only be played with players, not bots as bots would likely die very early. . So maybe you could try a close formation/ defense formation next time, & see if that could help you survive on map 1 & the cave section (because as far as I remember, another challenging horde event is in the cave section during alarm event).