Free browser-based aim trainer for Rainbow Six Siege — drills tuned for the lightning-fast peeker's-advantage flicks and the tight, headshot-or-nothing micro-adjustments that decide every Siege duel.
Set the trainer sensitivity (with the [+] / [−] keys) so a 180° turn matches your in-game 180°, then warm up for 5–8 minutes before ranked. Siege is the most flick-and-headshot-heavy game in this list: gunfights are won in the first 150 milliseconds of a peek, kills happen to the head, and there is almost no sustained tracking. That is why Reflex and Precision are your two core modes here — Reflex builds the fast flick onto a peeking enemy, and Precision builds the head-level crosshair discipline that turns those flicks into one-taps.
Siege punishes mistakes harder than almost any shooter. Operators die to a single headshot regardless of armor, the time-to-kill on a body is brutally short, and "peeker's advantage" means whoever initiates a peek sees the enemy a few frames first. The practical result: Siege aim is reaction flicks plus crosshair placement, not tracking. You pre-aim a head-level angle, an enemy peeks, and you flick the last few degrees and fire one tap. There is rarely a magazine-long strafe to track the way Apex or Overwatch demand.
Two mechanics define the Siege aim ceiling. First, pre-aiming at head height: the best players keep the crosshair on the exact vertical line a head will appear at, so the flick is a short horizontal correction rather than a diagonal scramble. Second, the micro-flick under peeker's advantage: because the peeker sees you first, your correction has to land inside roughly 120–180 ms or you lose the trade. FPSAim's Reflex mode — sudden single-target appearance — isolates exactly that window, and Precision mode trains keeping the crosshair pinned to a small target at a fixed height.
Siege's destruction layer adds a third wrinkle: new angles open constantly (shot-out walls, breached floors, rotates), so you must re-establish head-level crosshair placement on angles that did not exist a second ago. That is a game-knowledge skill, but the raw flick speed to capitalize on a fresh angle is pure aim — and that is trainable.
Single target, short lifetime, sudden appearance. This is the single most important Siege drill: it trains the 120–180 ms flick-and-one-tap onto an enemy who just peeked your angle. Spend the majority of your Siege warm-up here.
Small, deliberate targets. Trains keeping the crosshair pinned at head height and committing to a single clean shot — the habit that turns a flick into a one-tap instead of a body-shot trade.
For the long sightlines (Glaz, long hallway angles, droning-then-peeking a mega-angle). Sniper mode rewards a still mouse and a committed shot on a distant target.
60 seconds of Classic to wake the hands before ranked. Siege's first round sets the economy — you do not want to be cold for it.
Siege uses a multiplier-based sensitivity (Horizontal/Vertical sens with a Mouse Sensitivity Multiplier, default 0.02), so raw in-game numbers do not compare cleanly to other games — the meaningful comparison is cm/360 or the DPI×sens band. Most Siege pros sit in a moderate range that favors fast flicks without losing micro-control. The table below is sourced from publicly posted pro settings on prosettings.net and Liquipedia; treat them as reference points.
| Player / profile | DPI | Mouse multiplier | Horizontal sens | Style note |
|---|---|---|---|---|
| Shaiiko (G2) | 400 | 0.02 (default) | 12 | 84 FOV, classic low-DPI flick |
| Pengu | 1600 | 0.02 (default) | 2 | High-DPI, low in-game number |
| Spoit | 1600 | 0.001 | 55 | Non-default multiplier setup |
| Common pro band | 400–800 | 0.02 | ~8–14 | Moderate, flick-friendly |
| High-DPI alt band | 1600 | 0.02 | ~2–6 | Same arc via more DPI |
Key point: 400 DPI × 12 sens and 1600 DPI × 3 sens can produce a near-identical cm/360 — what matters is the resulting turn arc, not the in-game number. Match the trainer to your actual cm/360, not to a pro's raw "12".
| Setting | Recommended | Why |
|---|---|---|
| Mouse Sensitivity Multiplier | 0.02 (default) | Standard scale; keeps your number comparable to most guides |
| ADS Sensitivity | ~50 (match hipfire feel) | Consistent flick arc between hip and ADS |
| Field of View | 84–90 | Pro standard; wider angle awareness on peeks |
| Mouse Acceleration | Off | Raw 1:1 input for repeatable flicks |
| Aim Down Sights | Toggle or Hold (preference) | Consistency matters more than which |
| Render Scaling | 100% | Sharp heads at long angles |
Notice the weighting: Reflex gets the biggest block because Siege is a flick game. After the trainer, jump into a Terrorist Hunt or the in-game Shooting Range to re-anchor to real operator gun feel and recoil before you queue ranked.
You hold angles with the crosshair at chest or floor level, so every peek needs a diagonal scramble up to the head. Fix: drill Precision at a fixed height and consciously keep your in-game crosshair on the head-level line of every wall.
You try to "follow" a peeking enemy like it is Apex. Siege fights are over before tracking matters. Fix: spend most of your trainer time in Reflex — flick once, commit, fire.
A bad session makes you "fix" your sensitivity, which resets your muscle memory. Fix: lock one cm/360 for at least 50–60 hours before blaming the number.
An ADS sensitivity that feels different from hipfire splits your flick arc. Fix: tune ADS sens until the flick feels identical aimed and un-aimed; most pros land near 50.
Siege weapons reward burst and tap at the head far more than full spray. Fix: Precision mode reinforces single committed shots; carry that habit into the Shooting Range.
A breached wall opens a new sightline and you have not re-established head-level pre-aim on it. Fix: after every breach, snap your crosshair to the head-level line of the new opening — the trainer builds the flick speed to punish whoever peeks it.
The Siege pro scene runs the same lightweight wireless flagships as other tac-shooters; specs cross-referenced with Rtings.com.
2D flick training builds the raw correction speed, but Siege's pre-aim and angle-holding are inherently 3D skills. For that, try our sister site fpstrain.us — same browser, 3D environment where you can drill holding angles and peeking humanoid targets.
Yes. Free, no account, no download — it runs in your browser.
Siege uses a multiplier system, so match your cm/360 rather than copying a raw number. Many pros sit at 400–800 DPI with the default 0.02 multiplier and a moderate horizontal sens; high-DPI players use 1600 with a smaller in-game number for the same arc.
Because Siege sensitivity is DPI × multiplier × sens. Shaiiko's 400 DPI / 12 sens and a 1600 DPI / 3 sens setup can produce nearly the same turn arc. The in-game number alone is meaningless without the DPI.
Reflex, by far — Siege is a flick game. Precision is the strong second for head-level crosshair discipline. Sniper helps the long angles.
Barely. Siege has almost no sustained tracking — fights end in a flick and a tap. Spend your time on Reflex and Precision instead.
Most sit around 84–90. Wider FOV gives more angle awareness on peeks at the cost of a slightly smaller on-screen target.
Use the [+] / [−] keys until a full 180° spin in the trainer matches a 180° spin in Siege (wall-spin test in the Shooting Range). Drift splits your muscle memory.
Different jobs. FPSAim isolates flick speed and crosshair control quickly; the Shooting Range adds real recoil and operator gun feel. Use the trainer first, then the range.