It is and the First World War event was entirely separate from the infantry teaser that came out at the same time, but it just made the entire event all the more wasted and stained the idea of First World War vehicles due to how terribly the event was designed.
The infantry were the least of it. The map itself was bad and didn’t provide enough avenues for the Garfords to go to, making a mid-event update necessary to boost the horsepower of all vehicles during it. The aircraft were all bugged and flew horribly as a result, with them, more often than not, being unable to recover from relatively simple maneuvers due to, if I’m remembering correctly, flawed coding related to their tails. Then the cherry on the top is how unbalanced it was in favor of Germany, with the A7V being objectively the best tank of the event and the British Mark V being the absolute worse. The Mark V couldn’t even penetrate the A7V beyond 100 meters, while the A7V could do penetrate it at well over a kilometer. That left the Entente with only two good vehicles: the Saint-Chamond and the Garford-Putilov; but unlike the German Garford-Putilov that faced literally only light-skinned vehicles, being that its shell could frontally penetrate every single Entente tank, the Entente Garford-Putilov had to manage to hit the roof of the A7V to do any damage to it.
I really wanted earlier tanks to be added as a result of the event, but like their abysmal test for realistic APHE, they hampered it themselves by making the event entirely terrible.