In the end battle of _Avengers: Endgame_, while Steve wanted the Stones as far away as possible, Bruce/Hulk urges for them to be returned to their original timeline after his conversation with the Ancient One. 
So Hawkeye, Black Panther, Spider-Man and ultimately Captain Marvel try to get the gauntlet to the quantum tunnel in the van. 

What was she supposed to do once she reached the van? Neither did she have pym-particles to shrink to sub-atomic-level and traverse the quantum realm (also no GPS, but that might be less of a problem for Captain Marvel?), nor did she have any idea where and when the stones were taken.  
Was she supposed to deliver it to Scott? From the speed of her approach this seems unlikely and Scott was also aware only of the three Infinity Stones in NY. 

Is there any official word on what Captain Marvel wanted to accomplish?