By address

local component = require("component")
local cruise_launcher = component.proxy("xxxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx")

By searching through all the components

local component = require("component")
local cruise_launcher = nil

for k,v in component.list() do
  local p = component.proxy(k)
  if not (p.isICBM == nil) and p.isICBM("component_cruise_launcher") then
    cruise_launcher = p
  end
end

• launcher.setFrequency(freq: number)
  Set the Frequency of the launcher.

• launcher.getFrequency() : number
  Get the Frequency of the launcher.

• launcher.setTargetPos(x : number, y : number, z : number)
  Sets the missile destination location of the cruise launcher

• launcher.getTargetPos() : {x : number, y : number, z : number}
  Gets the missile destination location of the cruise launcher

• launcher.canLaunch() : boolean
  Returns true if the cruise launcher is ready to launch the missile, false otherwise.

• launcher.launch() : boolean
  Launches the missile at the location set by launcher.setTargetPos. Returns true if the launch succeed, false otherwise.

• Getting Started
• Example Programs
• Radar Documentation
• EMP Tower Documentation
• Missile Launcher Documentation
• Cruise Launcher Documentation