Rank up vanguard to rank 2. Buy the gear you can. Rank up to rank 3. Use the comedation to get more gear. Tuh dah. Tips for ranking up: do bounties from the bounty tracker. Patrol if you have a bounty for it. Try to tackle more than one bounty at once. For instance: patrol cosmodrome, collect sensor mites in the cosmodrome, melee kill 30 enemies without dying, and kill 100 enemies without dying means go patrol cosmodrome and Melee kill stuff then kill stuff however you want. Also do the weekly. You can't do the highest difficulty yet but the regular one should give you like 150 towards your rank.