Just thought I'd share some tips on Iron Banner, mainly from mistakes I have made in the past
Week long event, start at level 0, armour at levels 3 and 4, which is what I'm mainly interested in
Work out what you want, this time round gauntlets are at level 3, boots at level 4
Items cost glimmer, not crucible marks. They aren't cheap, 9950, so be aware of this, as no point grinding IB and running out of time to get the glimmer you need
IB xp comes from wins, redeeming losing medallions, bounties and buffs.
Every medallion is worth 80% of a win and are redeemed on your next win, so losing isn't a disaster. However you can only carry 5 medallions so long losing sprees are not helpful, find another lobby!
The IB bounties from Lord Saladin vary between easy , ok and tough, make sure you do as many as possible each day, very valuable Xp
Buffs come in the form of class items, emblems, shards. Worth having as they all add 5% (to check, but about right) but they cost glimmer! quite a lot of it, so you got to weigh up how much glimmer you have as well.
The best Buff though is Tempering, which costs 1 mote of light for a 12 hour xp buff. The most important thing to remember here is the % buff increases as the week passes, by Sunday or Monday this a 100% buff! which makes progress really quick
Crucible bounties don't count but can be completed and crucible marks are earned, which is really helpful if you don't play a lot of crucible
5 map rotation, all control, heavy ammo for the win
It's a grind, but die to the buffs, not that much of a grind especially if you can play later in the week