Dark angels vs Thousand sons

The emperor decided to send the lion and his legion in order to arrest magnus the red.

The era will be Great crusade.

I think the lion would be ALOT more ruthless in capturing magnus and would definitely activate the dreadwing protocal alongside with the excindio and he would probably not listen to horus due to the fact that the lion is only loyal to big e.

As far as I know the DA definitely has a better chance at razing prospero than most legions due to the fact that they have DAOT weapons and the DA have dealt worse things than the TS.

I think the lion would just tell the talons of the emperor to stay back and only intervene if the DA are endagered.

If horus tells the lion to kill magnus i think the lion would just tell horus to fuck off and wait for big e orders instead.

Who will win in a fight between the emperors EXTERMINATORS vs A legion of sorcerers.