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AEGIS IADS

Event-Driven Integrated Air Defense for DCS World | v0.8.4

Brought to you by VMFA(AW)-224 Skunkworks

v0.8.4 Released

  • Mobile SAM position tracking — MOB suffix enables periodic position refresh for shoot-and-scoot and convoy escort SAMs
  • EW sub-polling — spreads getDetectedTargets() across 200ms sub-ticks (one EW per frame)
  • Redundant API elimination — state transitions with identical DCS commands skip all API calls
  • Event-driven PD slaving — PDs update when parent transitions, not every poll tick
  • Static object discovery — PWR/CMD placed as statics (generators, buildings) now auto-discovered
  • Physics-based burn-through rewrite — single beta constant replaces 6-knob formula
  • Per-system tracking bias — SME-corrected TR/Eff ratios per SAM type (1.05-3.19)
  • Sector jam behavior fixes — observable jam flag, nearest-EW bearing gate
  • HERC jammer platform — EC-130H Compass Call support
  • SA-12/SA-23 Gladiator/Giant split — separate WEZ modeling for medium-range vs ABM missiles
  • SA-6, SA-11, PATRIOT WEZ corrections — aligned to real missile envelopes
  • SA-22 Pantsir-S1 + SAMP/T — new SAM types (CurrentHill + HDS mods)
  • IADS companion visualizer — real-time status via UDP export + web UI

Download v0.8.4{ .md-button }

What Is AEGIS

AEGIS models how integrated air defense networks actually behave — SAMs that start dark, activate on early warning radar feeds, react to anti-radiation missiles, degrade gracefully when infrastructure is destroyed, and cycle emissions unpredictably when operating autonomously.

  • EW-driven activation. SAMs start dark. Only EW radars poll for contacts. SAMs activate when a contact enters their activation range.
  • Graceful degradation. Kill the EW and SAMs go autonomous. Destroy a power source and the linked node goes permanently dark. Every infrastructure kill makes the IADS worse, never broken.
  • EMCON cycling with crew behavior. Degraded SAMs cycle radars on/off with randomized timing, threat memory, quick peeks, and double-sweeps. No two cycles are the same.
  • HARM reaction policies. SAMs detect anti-radiation missiles and react based on system capability — self-protect systems engage, SAMs with PD escorts lean on point defense, others go dark. Crews have reaction delays, panic chances, and the occasional brave stand.
  • PB HARM network warning. Pre-briefed HARMs are tracked via trajectory projection. The network warns SAMs in the path — but only if a live EW is providing coverage.
  • Electronic Attack (EA). EA aircraft suppress SAMs with physics-based burn-through jamming. Two-layer model: EW contact filtering with angular masking and SAM jammed EMCON cycling. Four jammer modes (OMNI, WIDE, 2xDIR, OFF), WIDE cone presets, directional pod targeting, passive ESM with NATO threat identification. Home-on-Jam on modern SAMs. Player-controlled via F10 menu or optional GUI overlay.
  • Decoy susceptibility. TALDs activate SAMs and waste missiles. Bombs and other ordnance are filtered out.
  • Zero dependencies. Single Lua file, pure DCS scripting engine. No MOOSE, no MIST, no desanitization. Name your groups, load the script, done.

Use the Setup Configurator to generate a customized setup script, or grab the defaults from Downloads.

Quick Example

Name your groups, load the script, done:

EW-NORTH                    EW radar
SAM-SA10-NORTH-1            SA-10 in sector NORTH
SAM-SA2-NORTH-2             SA-2 in sector NORTH
PD-SA15-NORTH-2             Point defense for the SA-2
PWR-EW-NORTH                Power source for the EW

local iads = AEGIS:New("red", { debug = true })
iads:Activate()
iads:AddF10Menu()
iads:StartMapDebug(15)

Feature Overview

Feature Version
EW-driven WEZ gating v0.1+
Infrastructure dependencies (EW, PWR) v0.2+
EMCON cycling with jitter behaviors v0.2+
HARM detection (TOO/SP mode) v0.3+
HARM reaction policies (STAY_HOT, LAST_DITCH, GO_DARK) v0.3.2+
Crew hysteresis (panic, multi-HARM saturation) v0.3.2+
Contact filtering (aircraft + TALDs only) v0.3.1+
PB HARM network warning (trajectory projection) v0.6+
PD stays hot during parent HARM reaction v0.6.2
HARM targeting PD redirects to parent v0.6.2
ECM jammer framework (jammed EMCON cycling) v0.7.0+
PB HARM EW detection delay (score-per-sweep) v0.7.1
Alert frustration (ALERT timeout without WEZ contact) v0.7.2
Orphan PD promotion (PD → autonomous SAM) v0.7.2
EW detection range override (DET suffix) v0.8.0
Critical unit tracking (tracking radar mission kill) v0.8.0
High Digit SAMs + CurrentHill mod support v0.8.0
Round-robin EW polling (performance) v0.8.0
EA v2: physics-based burn-through + antenna gain v0.8.1
EW contact filtering (angular masking, pie geometry) v0.8.1
Home-on-Jam (HOJ-capable SAMs break through jamming) v0.8.1
Passive ESM with NATO radar identification v0.8.1
EA GUI overlay (optional clickable panel) v0.8.1
Copilot/WSO EA support (slot-based lookup) v0.8.1
HARM detection range gate (40 NM default) v0.8.2
Per-SAM saturation threshold (crew personality) v0.8.2
NEZ frustration gating (ambush reset with full WEZ) v0.8.3
DIR burn-through normalization fix v0.8.3
SET_BRG ABS/REL mode (magnetic bearing input) v0.8.3
Mobile SAM position tracking (MOB suffix) v0.8.4
DIR pod bearing display v0.8.4
Range-dependent EW pie narrowing v0.8.4
ESM range reveal (confidence over time) v0.8.4

System Database

Use the TYPE key (second column) in your group name: SAM-SA10-NORTH-1, PD-SA15-NORTH-1, etc.

Base DCS

System TYPE Key WEZ (NM) NEZ (NM) ACT (NM) Alt Min (ft) Alt Max (ft) Self-Protect
SA2 Guideline SA2 24 10 30 150 80,000
SA3 Goa SA3 10 5 14 600 80,000
SA5 Gammon SA5 125 60 150 1,000 100,000
SA6 Gainful SA6 14 5 18 60 26,000
SA8 Gecko SA8 7 3.5 9 30 16,500
SA10 Grumble SA10 39 20 50 50 100,000 Yes
SA11 Gadfly SA11 25 12 30 10 75,000 Yes
SA13 Gopher SA13 2.8 1.4 4 33 11,500
SA15 Gauntlet SA15 8 3 10 10 20,000 Yes
SA19 Grison SA19 4.4 2 6 15 11,500
HAWK HAWK 25 12 30 150 45,000
Patriot PATRIOT 80 35 95 200 80,000 Yes
NASAMS NASAMS 10 5 12 100 50,000
Gepard GEPARD 2 1 3 15 10,000
ZSU-23 Shilka SHILKA 1.5 0.5 2 0 10,000
Roland ROLAND 4 2 5 50 16,000
Rapier RAPIER 3 1.5 4 50 10,000

CurrentHill Mod

System TYPE Key WEZ (NM) NEZ (NM) ACT (NM) Alt Min (ft) Alt Max (ft) Self-Protect
TOR-M2 SA15CH 9 3 11 10 33,000 Yes
Pantsir-S1 SA22 11 5 14 15 49,000 Yes

High Digit SAMs Mod

HDS values are real-world estimates, not yet verified in-game. Expect these to change as testing continues.

System TYPE Key WEZ (NM) NEZ (NM) ACT (NM) Alt Min (ft) Alt Max (ft) Self-Protect
SA12 Gladiator (v0.8.4) SA12 41 20 50 82 100,000 Yes
SA12 Giant (v0.8.4) SA12G 54 25 64 82 100,000 Yes
SA17 Grizzly SA17 27 12 30 30 75,000 Yes
SA20A (S-300PMU1) SA20A 81 40 95 50 100,000 Yes
SA20B (S-300PMU2) SA20B 109 50 120 33 100,000 Yes
SA21 Growler (S-400) SA21 105 50 130 50 100,000 Yes
SA23 Gladiator (VM) (v0.8.4) SA23 54 25 64 50 100,000 Yes
SA23 Giant (VM) (v0.8.4) SA23G 108 65 130 50 100,000 Yes
SA23 Gladiator (V4) (v0.8.4) SA23V4 81 40 95 50 100,000 Yes
SA23 Giant (V4) (v0.8.4) SA23V4G 205 100 220 50 100,000 Yes
SAMP/T Mamba SAMPT 65 30 75 100 80,000 Yes

All values are user-editable in SYSTEM_DB. Override any value per-site with name suffixes (NEZ, WEZ, ACT).

Credits

  • Concept and Requirements: VMFA(AW)-224 Skunkworks
  • Architecture and Implementation: VMFA(AW)-224 Skunkworks + Claude
  • Inspired by: Skynet IADS (walder), IADScript (Grimes)
  • Built for: VMFA(AW)-224 Skunkworks and the DCS community

License