The ornamental design for a unitycrossassembly, as shown and described.
FIG. 1 is a front perspective view of a unity cross assembly constructed in accordance with the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is an exploded side perspective view thereof.
The equally spaced broken lines are included for the purpose of illustrating portions of the unity cross assembly that form no part of the claimed design. The unequally spaced broken lines in FIG. 8 show the assembly order of the components of the unity cross assembly.