International Space Station

ISS Module	Kerbal Module	Launch Vehicle	Remarks
Zarya (FCB)		Proton-K	Can safely skip Russian segments if you don't have Tantares
Unity (Node 1), PMA-1, PMA-2	Union	Space Shuttle Endeavour (STS-88)	PMA-1 docks to front of Zarya
Zvezda (Service Module)		Proton-K	Docks to rear of Zarya
Z1 Truss, PMA-3	Zenith Control Block	Space Shuttle Discovery (STS-92)	Z1 to Unity top node, PMA-3 to bottom node
P6 Truss & Solar Arrays		Space Shuttle Endeavour (STS-97)	Temp installed on top of Z1 (optional: can skip this step as it gets moved later anyway)
Destiny (US Laboratory)		Space Shuttle Atlantis (STS-98)	Docks to front of Unity. PMA-2 relocated to front of Lab. Don't forget truss connector rear top of lab!
ESP-1		Space Shuttle Discovery (STS-102)
Canadarm2 (SSRMS)		Space Shuttle Endeavour (STS-100)	Installed on port side of Destiny lab
Quest (Joint Airlock)		Space Shuttle Atlantis (STS-104)	Docks to Unity starboard node, PMA-3 relocated to port side node
Pirs (Docking Compartment)		Soyuz-U (Progress M-SO1)	Docks to bottom of Zarya Functional Control Block
S0 Truss		Space Shuttle Atlantis (STS-110)	Installed on truss connector on top of Destiny lab
Mobile Base System		Space Shuttle Endeavour (STS-111)	Skip - not in game
S1 Truss		Space Shuttle Atlantis (STS-112)	Attaches to starboard end of S0
P1 Truss		Space Shuttle Endeavour (STS-113)	Attaches to port end of S0
ESP-2		Space Shuttle Discovery (STS-114)	Installed on side of Quest Airlock
P3/P4 Truss & Solar Arrays		Space Shuttle Atlantis (STS-115)	Attaches to P1 Truss
P5 Truss		Space Shuttle Discovery (STS-116)	Skip - integrated into solar array module
S3/S4 Truss & Solar Arrays		Space Shuttle Atlantis (STS-117)	Attaches to S1 Truss
S5 Truss, ESP-3		Space Shuttle Endeavour (STS-118)	Skip S5. ESP-3 installed on P3 truss; later relocated to S3
Harmony (Node 2)	Serenity	Space Shuttle Discovery (STS-120)	Docks to front of Destiny, PMA-2 relocated to front of Harmony (irl was docked to Union first)
P6 Truss & Solar Arrays			Relocated from Z1 to P4 Truss (or newly installed if you skipped that step)
Columbus (European Laboratory)		Space Shuttle Atlantis (STS-122)	Docks to starboard node of Harmony
Dextre (SPDM), Experiment Log Module		Space Shuttle Endeavour (STS-123)	ELM docks to Harmony top node (optionally swap next step to save effort)
JEM-PM, JEMRMS		Space Shuttle Discovery (STS-124)	JEM-PM docks to Harmony port node; ELM relocated to JEM-PM top node
S6 Truss & Solar Arrays		Space Shuttle Discovery (STS-119)	Attaches to S4 Truss
Kibo Exposed Facility (JEM-EF)		Space Shuttle Endeavour (STS-127)	Installed on end of JEM-PM
Poisk (MRM-2)		Soyuz-U (Progress M-MIM2)	Docks to Zarya FCB top node
ELC-1, ELC-2		Space Shuttle Atlantis (STS-129)	Skip: not in game
Tranquility (Node 3) & Cupola	Harmony	Space Shuttle Endeavour (STS-130)	Docks to Unity port node; PMA-3 relocated to Tranquility port node
Rassvet (MRM-1)		Space Shuttle Atlantis (STS-132)	Docks to Zarya FCB bottom node
Leonardo (PMM), ELC-4		Space Shuttle Discovery (STS-133)	Docks to Unity bottom node
AMS-02, OBSS, ELC-3		Space Shuttle Endeavour (STS-134)	Skip: not in game
BEAM	Kerbalow Mod	Falcon 9 (SpaceX CRS-8)	Optional: Installed on Harmony aft node
IDA-2		Falcon 9 (SpaceX CRS-9)	Skip (not in game) Attaches to PMA-2 on Harmony fore node
IDA-3		Falcon 9 (SpaceX CRS-18)	Skip (not in game) Attaches to PMA-3 on Harmony top node (relocated from Tranquility)