from all my time playing tribes 2 there ways iv learned to get ready for accusal online play but like most post theirs gonna be lots of people ho will agree and yet disagree so feel free to tell how you think new players can train up on the tribes 2.
my way of getting better at the tribes 2 is do bot matches for a couple days (exploring normal,classic tribes 2 maps) and start out with no bots just get to know your surroundings from weapons to packs to what base equipment does what to manding the command circuit to even control the turrets with the command circuit. ( not that your gonna be doing that often of course but sometimes its useful) then see what you can do (still with no bots)
try some trick and routes you have seen on youtube or herd about in the forum such as a flag run with a strike
this video tribes 2 inside will show you what that is.
even get with a friend and try flag throwing to see if you can do that. but theirs more than just flag runs.
you can do stuff from flag cover in heavy (Juggernaut armor) to scout sniping (lazer rifle and energy pack) and scout assassin (shocklanc and cloak pack)
see what armors suit you best and with what task you can accomplish in em (you learn better with task when you have bots so keep that in mind)
then also see what vehicles you can control and see if theirs any task you can accomplish in em (bomber runs as tail gunner to havoc heavy assault run
k now you can try bots see how you can do now remember you can set the difficulty level of the bots right when you start the match so experiment with this to find your difficulty level your pleased with.
now when you feel your ready try to go online or if you wanna try playing against another player ho has about as much skill as you or know some one ho plays near by use the land line connection in the solo & lan tribes 2 down load you got. remember a player is better then an ai .the ai you fight are on fixed movement grids a player moves freely across the map so his/hers tactics will change daring game unlike bots. so see if you can get friends or family members ho play tribes to join on a private tribes online server or lan server.
happy hunting

remember if any one experienced is readying this feel free to provide tips of your own for new comers.