[------What do Lagg's V5 bots do?------]
Lagg pretty much messed up with the entire T2 AI code, he added so many things and fixed so much stuff that I just can't list them all. But I guarantee you that these bots are very fun to play against, unlike the default bots.
Some things that Lagg's V5 bots do:
-drive all the tribes 2 vehicles and deploy MPBs.
-be tailgunners, bombers, gunners for other bots
-support humans as a gunner/tailgunner whenever they need vehicle support (say VNS or VNB/VNT)
-run from missiles if they're piloting shrikes
-detect mines better and throw them in combat
-have better cloaking tactics
-attack and repair vehicle stations
-find locations to mortar shoot objects instead of waiting on their butts for a targeting laser bot
-deploy motion/pulse sensors, cameras
-use missile launchers to destroy turrets, sensors, solar panels
-steal vehicles to go back to base if they have a flag... vehicle cap!
-climb high places to spam attack areas with the mortar or sniper rifle
-wall-shoot objects from difficult angles
-use predefined attack paths for destroying objects
-use the mortar to destroy inventory stations and generators, as opposed to the default weapons
-camp destroyed enemy assets, especially the gens
-patrol in defense using predefined paths
-tell you their current objectives if you're looking at them and say VCW
-Lagg's siege maps have mission specific scripts that tweak the bots specifically for that map
-Lagg's bots have a fix for exploding tank Unhandled Exceptions
-And MANY more things and fixes to make the default bots un-retarded. There's so many I can't list them all.