Assuming that you are talking about real life, and not a video game, there is no real way for anything under a large company or large government to build an ICBM. Ignoring this, the following steps are a preliminary overview: 1. Determine mission objectives (how many miles need to fly)
2. Develop propulsion system (probably solid rocket, liquid possible)
3. Develop guidence system (inertial or GPS?)
4. Develop delivery system (MIRV or single warhead?)
ICBM = InterContinental Ballistic Missile
Inter continental bellestic missile
Intercontinental Ballistic Missile
ICBM stands for Intercontinental Ballistic Missile and is a way of delivering warheads to countries on different continents.
A missile with a range of 3500+ miles is an intercontinental ballistic missile (ICBM).
Inter-Continental Ballistic Missile
ICBM
ICBM intercontinental ballistic missile
An intercontinental ballistic missile, or ICBM, is a long-range (greater than 5,500 km or 3,500 miles) ballistic missile typically designed for nuclear weapons delivery, that is, delivering one or more nuclear warheads.Source: Wikipedia.
The range depends on the missile, but a typical range is 3000 miles.
ICBM (intercontinental ballistic missile)ice pick
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