Aztec changed in 1.6 and the old waypoints have them banging their heads against the wall as T's. Look further down the list of threads and you'll see Obi Wan has gractiously fixed this and posted the new waypoint file. Grab the one for Piranesi too as there's changes for it also in 1.6. REPLACE your old waypoints and delete any experience files for those maps eg. de_aztec.pxp



As for minbotskill you do NOT use the braces.
minbotskill 90 is correct.