They told me Skirmisher was fun and strong

[Sir Spacey]

Welp, I don't know if you are serious or not, but:

The term "Skirmishers" is basically used to describe the whole general troop tree. Sometimes also called "Pikemen". At tier 4 and up, you will notice how overpowered "skirmishers" are. As shown in the video, you came in with very crappy gear, and probably a horrible character.
If this video was just a joke then ignore the above