I need to make a grid pattern with points that stagger to make a diamond pattern instead of the regular pattern that a fishnet grid makes. It is sometimes referred to a "staggered start". My points need to be 800ft away from each other. I am creating my map in ArcGIS 10.2. Is there something else I can try?
As far as I know there isn't a specific tool to do that, but others have already built tools for the creation of isometric grids.
I found this toolbox you can download and use. I tested it a few times and it seems to work well in general, but you might still need to perform some manual operations of clipping the points layers, or generating new centroids from the resulting hexagonal grid.
Edit: if you need 800 ft between each two points, set the hexagon side distance to 461.8802154 ft. (basic euclidean geometry). Scale up or down depending on your CRS