Campbell and Hope have set a world record for the highest ODI opening stand. Hope scored 170 and Campbell 179.
Gayle and Samuels hold the ODI record for highest ODI partnership in any batting position.
Hope now averages 49ish in ODIs with 5 tons. 5 tons at his age in ODIs is quite rare. Yes, 4 of those came against minnows, but he did almost score a back to back pair of tons vs India recently, so he looks remarkably improved.