Next time, you need to learn grammar and spelling before you start trolling. Muted.

If Bane can punch through concrete walls in TDKR, then im ok with a spartan running through rocks. Game is based on sci fi fantasy brah! When they say they are going for a grounded realistic approach, it means the emotional undertone.

Only question I have is how do they gain so much momentum after coming to a complete stop and they moved like 10 feet in like 1 step

Op has every halo fan boi by the nuts it's hilarious

how can tanks go through buildings yet be taken out by a single rpg?

As far as it goes to smash through that rock the Spartan is using what amounts to the 'Spartan charge' ability so is upping her speed by using her thrusters to up her forward momentum to hit a stationary object that is cold and not as solid as metal 50cal sniper round travelling the opposite direction at sound barrier breaking speeds. Punching a rock displaces the kinetic energy over a wider portion of the body she is also moving at speed with thrusters adding more and the rock is stationary,cold and more brittle then a sold round of steel/tungsten. A sniper round places all its kinetic energy into one spot break through the shielding and armour while travelling at break neck speed towards the Spartan. Being smaller and a lot denser then the rock and of course it's speed heading towards the Spartan gives it the energy it needs to kill.

What, no tree bark?

The Spartans receive augments to strength and other natural capabilities. They're Mjolnir armor systems further enhance these. Natural stone isn't specially created to withstand getting hit by a train, and that's about as hard as these Spartans are hitting it. The Mjolnir armor plating as actually capable of deflecting small rounds. Covenant, and UNSC weapons don't exactly utilize [i]small[/i] rounds. The armor can only stop so many plasma shots before it weakens. Luckily the armor is self repairing. There is a reason for everything.