You know you're in for a bad time when...

[Mr_Awesome]

When the server crashes the wave before Odin.

When the server crashes right as Odin gets to the bottom of the hill.
When you realize Odin just destroyed the cades on your left in the beginning of the wave. (lines of red)
when you say hold the last guy, and they kill the last guy while your trying to spec/rejoin.
when a tier 2 archer is willing to shield but commandos/Infantry  can't be bothered.
when your barricades break and your inexperienced shielders break the shield wall and leave you to die.
As a ranged guy, the shielder dies and you see all the archers turn and look at you.