So now I’ve finished my Obsidian grind and with a week left on the event I can give you some of the tips I’ve used to normally get top of the leaderboards for you to all get your keys!
General Tips
The most important factor that goes towards you getting score is the amount of mirium you bring to the Magnus. Damage is secondary to this – I’ve come top on games that I’m a few thousand damage behind someone else but because I dumped my mirium I got on top.
The most efficient methods I found to grind are either winning games with the Grenadier on normal (if you know how to use it this is very easy) or playing with the Cerberus or Malachite on Hard, which I would recommend for those who don’t like the risk of using the Grenadier. Nightmare is not worth it past winning once to get the reel unlocked.
The Immortal will NEVER go near the Magnus – if you are in the Magnus radius you are safe from it. Hunters, Hedgehogs and the Lost will go to you though. But the Immortal will never go near it.
Load the HE for the boss fight. You can pen the weakspots and normally the bots with it – no reason not to use it. As the Grenadier use HEAT for the boss for huge damage output.
Damage the boss periodically – it summons waves of bots when it reaches HP thresholds and will summon too many if you damage it too fast. Damage it a little, deal with the bots, then repeat. Also the first time the boss goes down you get a full heal and all the bots fall with it, so you can DPS it down at the start.
Use the speed boost for ram kills. This works best in the heavies but all tanks can get much more damage from doing it.
Wat out for the Lost. They can easily hit for over 1k if they catch your rear. They should be priority if you spot them.
Tips for tanks
Grenadier – always go for flat side armour or rear armour for pens. On Normal all bots except the CS-53s can also be penned in the flat side turrets. Also never fire both your shells unless you’re killing the last tank in a camp – you lose a lot of DPM.
Cerberus – you have increased module damage so go for ammo racks (side armour just under the turret) or engines for fires. With HE you have hilariously good DPM for the boss so use it to clean up bots and then wear the boss down.
Malachite – same as Cerberus but with more armour and speed. HE is hilariously effective again, so make the most of it.
Double+Legio – these are less effective for damage but better if you’re newer to the mode as they have armour. Don’t fire off all your shells to keep your DPM up. Ram kills are much more effective with these tanks as they are heavier.
Hornet – excellent against the boss but the DPM isn’t high enough for the bots before it. Can work very well but requires a lot of skill. I usually didn’t play it as the Grenadier is better in my opinion.
And there you have it – if anyone has any questions, ask in the comments!
Source: https://www.reddit.com/r/WorldofTanks/comments/17hnrtm/mirny13_grind_guide/