As Innovater said: Scavangers dont attack automalically, you have to
assign the attack action to them. (press A and the target
or press "attack" and the target)

There are no special animations yet, I will just use the hammermovement then
for the attacks.


That the AI does not switch targets is true, and I will change that,
making the units eveluate the target every 3 seconds, so they will
first attack units, and if none are there, they will attack buildings.

It not really an AI yet, but rather a "send all troups to player after 200 seconds"
routine.