That is what the story from the Spanish mercenary is saying. Here are some more excerpts from an English translation:
He specifies that the figure depends enormously on the qualification and the task, “they do not pay the same to a paramedic as to a sniper. Or a drone pilot than a zafador or an artificer.” Then there are the “pluses”. “In my case, it’s $300 per man killed . . .”
Since I act alone, I am ground gold to them. If you don’t need anyone, it’s cheaper, of course. And on top of that, in my case, with good marksmanship confirmed at 1,600 meters. They asked me why I hadn’t come before." So far, he has not met any other snipers: “We are very few. We make more casualties than anyone else after artillery. Then there are those who pilot the drones, which are in high demand. It’s mind-blowing what they do.”
That would explain why a Spanish spell-check did not catch it.
The story seems credible to me. The Spanish paper is unlikely source for Russian disinformation, and the story does not fit into the narratives pushed by Washington.
That does not mean that is necessarily true, but there should be an investigation into whether the US is putting bounties on Russian soldiers.
The story about alleged bounties on US soldiers in Afghanistan was a big deal during 2020. The Biden White House eventually admitted that there was no real evidence to support the story. What would be the US reaction have been a mercenary coming forward to say that a Russians were paying him to kill Americans?
The American company and/or elements within the US government could be hiring snipers authorization from the White House. They may see it as an opportunity to further their own interests, and we could end up in major escalation in the war in Ukraine without the approval of any elected official.
If that sounds far-fetched consider what has already happened in Syria. The military lied about the number US troops in Syria under Trump. Under Obama factions supported by Pentagon ended up fighting against factions supported by the CIA.
Okay, if Biden is not authorizing this, who is? Are American contractors acting on their own or for some other entity?
The White House is claiming that there are war crimes and genocide in Ukraine, and they are blaming Russia. A rogue contractor or private army could easily provide a pretext for a greatly expanded war.
Here is a description the operations of the mercenaries from the Spanish link:
In addition to the harshness of a conflict in which “everyone acts in an inhumane way with civilians in between”, this Madrid elite shooter has been surprised by the presence in Kiev of so many private security agencies. "Here I have not seen militias of armed civilians. There are military companies from many countries, including Ukraine. A controller does an interview with you, they know you, they take pictures of you. They see all that you are and have been. There are Polish, Swedish, Danish and, above all, from the USA. They assemble teams of six people and, if you are the card of the deck that they lack, they hire you.
If elements in Ukraine want to get NATO into the war, committing atrocities and blaming them on the Russians is a good way to do it.
Another approach would be to commit atrocities against Russian POWs and Russian-speaking civilians to provoke an over-the-top Russian response. There are already gruesome videos that appear to show torture and murder of Russian POWs.