You will need to make a new seperate animation set named different of the bots u want to use .
Also make new BOTCONTROLLER CLASS and in this you can change the HOSTILESTIMULUS responses.SR_runtoward , melee attack etc
Make your new pawn indexes under the trandoshan overpawn so they will have same team index.( ie an enemy)
in the mesh set make it connect with the MPSET to make them more aggressive and you can change accuracy also.
Hope that help