Imo, try to get the skills that unlock the non militia versions of gear you want to use, as they're generally less demanding in dropsuit resources and allow better loadouts, and don't bother with skills like turrets, vehicles, corporations etc, as they only work in stuff you own. Avoid using advanced/prototype gear all the time unless you have the isk or aur to support that, try to avoid combat reloads unless you have the rapid reload sub-skill for that weapon type and get familiar with layouts and the more frequent tactics used in each, take advantage of your surroundings. For now, you're better off with a medium dropsuit, and try to set it up with a drop uplink to get war points for each team spawn.
Edit: On second thought, you're better off reading wiki.dust514.info if you're still playing. It has guides and explains mechanics too.
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