Seems like Telemundo is treating this as their Olympics. Their coverage is planned by Jim Bell who does the Olympics for NBC. Here are some stats.
500+ on-the-ground personnel to produce all 64 games from Russia
20+ commentary team of play-by-play voices, game analysts, soccer experts and correspondents
4 announce teams covering in-venue for the majority of the matches
150+ dedicated personnel at the International Broadcast Center
40+ dedicated personnel at Telemundo’s Red Square studio location
25+ dedicated personnel at Telemundo’s Gorky Park studio location
10+ dedicated personnel at Telemundo’s Zaryadye Park studio location
110 tons of equipment
78-vehicle fleet for transportation of personnel
37 cameras, including FIFA pool feed cameras and Telemundo exclusive cameras
7 studios and stages-- Red Square; the International Broadcast Center; Telemundo News and ARV; Zaryadye Park; Gorky Park (for Un Nuevo Dia); Fan Festival Moscow, and Luzhniki Stadium
20+ technical production and editing facilities--Miami Telemundo Center; Telemundo Hialeah; NBC Sports Group Stamford; 30 Rock in New York City; NBCU Technology Center Englewood Cliffs; Comcast Media Center Colorado; International Broadcast Center, Gorky Park and Zaryadye Park, all 12 FIFA World Cup venues across Russia
64 production engineers and an additional 25 dedicated Telemundo camera crews working throughout Russia
4K Ultra High Definition available for all 64 World Cup matches on demand via a 4K-capable set-top box and a 4K television
56 live matches on Telemundo
8 live matches on Universo
All 64 matches live on Telemundo Deportes En Vivo and NBC Sports apps (in Spanish)
All 64 encore presentations of each game every night on Universo
32 days starting June 14 through the Final July 15
11 cities covering about 75 percent of the U.S.
12 venues throughout Russia
4 time zones with 7 hours ahead of the U.S. Eastern T
Also from what I’ve read Telemundo will be calling all the matches on site or in Russia. I’m not sure the figure but Fox will be using off site commentary back in the US.