Rainbow Six Siege Operation Deadly Omen: A 2026 Look Back

I'm just a regular Siege player, and in 2026, Operation Deadly Omen is already part of the game's history. But if you ask me about Year 9 Season 1, I still have opinions. This isn't a live news alert; it's a retrospective. Back in March 2024, Ubisoft kicked off Year 9 with Deadly Omen, and the season brought the usual mix of bug fixes, balance adjustments, and new content. The headline, though, was Deimos. 🎯

Ubisoft described Deimos as one of the original pillars of Rainbow Six and now one of its most ardent detractors. That line alone tells you a lot. He isn't some random recruit with a new gadget; he's a character with history, and the kit matches the attitude. Deimos comes with two primary choices: the AK-74M and the M590A1 shotgun. For his secondary, he gets the .44 Vendetta. His health and speed are both marked at 2 out of 3 stars, so he's not a glass cannon and he's not a sprinting duelist. He's a mid-weight operator with a very loud party trick.

That party trick is the Deathmark Tracker. It's a miniature flying probe that seeks out a chosen target and reveals their location to the player. Simple, right? Not quite. The tracker also reveals Deimos' location to the enemy. While the probe is doing its thing, Deimos is only equipped with his .44 Vendetta. So you better get the job done quickly. Honestly, the tracker is like that one friend who promises to keep a secret and then immediately tells everyone at the table. It points a spotlight at the target, sure, but it also points one right back at you. That risk-reward dance is what makes Deimos interesting to me. You're not playing a quiet intel operator. You're starting a conversation and daring the other side to answer. 💥

Let's be real: that design is spicy. In 2026, I still think the Deathmark Tracker is a great example of Siege's love for tense, messy information plays. It doesn't just hand you a wallhack fantasy. It makes you commit. If you whiff with the .44 Vendetta, the enemy knows where you are, and your team feels that pressure. If you land the shot, you look like a genius. That's the kind of operator that creates stories in voice chat, and I'm here for it.

Now, the release timing. Ubisoft confirmed that Rainbow Six Siege Y9S1: Operation Deadly Omen officially launched on Tuesday, March 12 at 6AM PT / 9AM ET / 1PM UTC / 1PM GMT for PlayStation 4, PlayStation 5, Xbox One, Xbox Series X|S, and PC. Server downtime lasted for approximately 60 minutes. During that window, players couldn't log in or matchmake, and everyone had to download and install a new patch update before jumping into the new season. That patch-day routine is its own little ritual. You stare at the screen, make a snack, refresh nothing because there's nothing to refresh, and wait for the servers to wake up. ☕

It's also worth remembering that Ubisoft has delayed new seasons before. Y8S4 slipped by a whole week back in November, so players were already a little twitchy about Y9S1. I know I was. When a season has a new operator with a gadget that changes how information flows, a one-week delay feels like a month. In 2026, we can look back and smile, but at the time, the waiting game was real. The patch notes were the only thing keeping us sane, and I had them open in another tab like a lifeline.

Here's a quick recap table for anyone catching up on the season in 2026:

What still matters in 2026? For me, Deadly Omen is a nice time capsule of where Siege was heading. The season wasn't just about adding another gun or another face. It was about giving players a gadget that creates a two-way information fight. Deimos doesn't whisper. He announces. And the Deathmark Tracker makes both sides sweat. That's a design idea that has aged well, even if the season itself is now old news.

If you're a newer player digging through old season notes, my advice is simple: don't treat Deimos like a passive intel pick. The tracker is a commitment. You're trading privacy for pressure, and the .44 Vendetta is your only backup while the probe is out. That's a very specific kind of drama, and I love it. Also, remember the patch-day basics: server downtime, a required update, and a little patience. Some things about Siege never change. 😄

So yeah, Operation Deadly Omen is a 2024 season, but in 2026 it's still a fun chapter to revisit. Deimos brought a strange, loud, risky style to the intel game, and the Deathmark Tracker remains a perfect example of Siege's habit of making information feel dangerous. If you hear that little probe buzzing, don't panic. Just breathe, aim, and remember that the spotlight is on both of you.