Ask Jot

Chosen Answer by SirNavieed 

I can guess that second order is based on Records and dates inside the story .

Chosen Answer by Radical One

The answer to your first dilemma... Since you're near the statue of Thor, I presume that there's a S.H.I.E.L.D. access point nearby. If you don't already have Thor on your team, switch out one of your team members and replace Thor with the hero or heroine. Next, assign Thor's power "Thor's Rage" to one of the buttons. Accept your new team temporarily and return to the game. Now, cast the power "Thor's Rage" onto the statue. No other power in the game will work on the statue. If done correctly, the wall up ahead will be wide open to your team. If you wish to do so, you can switch back your original team member in. If, however, you don't want to swap characters, or you want a bit of extra XP, then proceed ahead. Many enemies will spawn, but they should not be too difficult to defeat. One method to dispose quickly of your foes is to grapple with your adversary by pressing the Square button when nearby, then moving the Analog Stick in a certain direction to toss him into the fire. Eventually, the waves of enemies will cease, and you can continue. And the answer to your second question... I'm not sure whether the hammer is required to proceed, but I believe that it is in your best interest to pick it up, for it will make the very last part of the Bifrost Bridge section less arduous.