Fight of the Night:"Fight of the Night has to do with how you finish the fight as well as how loud the crowd is cheering i.e. a Flash KO with no previous rocks after the crowd has been cheering for over a minute will give you the award." Force83 ufcundisputed.com forum
And as for Submission of the Night:
You have to make the apponent submit
without throwing any strikes,
so useing judo or wrestiling
to slam him would be wise