The phrase "a major assignment of" is correct and usable in written English.
It can be used when referring to a significant task or responsibility that is assigned to someone or something.
Example: "The project manager outlined a major assignment of coordinating the team’s efforts to meet the deadline."
Alternatives: "a significant task of" or "a key responsibility of".
In 1997, a major assignment came along, in the form of a game based on Spielberg's dinosaur epic "The Lost World".
This was a major assignment that led to the number of agents in the Bureau being increased from 3,559 in 1946 to 7,029 in 1952.
Then came a major assignment: working with Deborah Kerr on the musical numbers for The King and I, 20th Century Fox's big musical hit of 1956.
Figure 1 shows the aliphatic region of representative H NMR spectra, with major assignments, of the VH samples for each time point.
And that has sold Heineken executives on giving the agency creating the campaign, the New York office of Lowe Lintas & Partners Worldwide, an additional major assignment: to develop and produce Heineken brand advertising that is to run around the world.
Even after finally dropping the columns in 1968 he continued reporting and undertook a handful of major assignments a year.
In his major assignment this season, that of Melancholic in Balanchine's "The Four Temperaments," he was not comfortable, but he had no reason to be — when I saw him, he was doing this famous role for only the second time — and he gave it everything he had.
As assistant managing editor, his first major assignment was to head the team of reporters and photographers covering the 1956 Summer Olympics in Melbourne, Australia.
Birdstone's next major assignment will be the Travers at Saratoga, now one of only a handful of major races Zito has not won.
Vérités first major assignment assignment was received in late July 1908, a month after she joined the French fleet.
