What is Rapidfire?
Rapidfire (RF) is one of the most important mechanics in OGame battles. A ship with a Rapidfire advantage against a specific target can fire multiple times in one combat round with high probability. The formula: With RF X, the ship fires again with a probability of (X–1)/X. Then again with the same probability, and so on.
Practical example: Cruisers have RF 6 against Light Fighters. This means the Cruiser shoots again with a 5/6 ≈ 83% probability. If it shoots again, again with 83% — and so on. On average, a Cruiser therefore makes 6 shots against Light Fighters per round. This makes Cruisers the ideal counter-unit against LF masses.
Rapidfire Table: Ships against Ships
| Attacker | Target | RF Value |
|---|---|---|
| Cruiser | Light Fighter | 6 |
| Cruiser | Espionage Probe | 3 |
| Battleship | Espionage Probe | 5 |
| Battlecruiser | Small Cargo | 3 |
| Battlecruiser | Large Cargo | 3 |
| Battlecruiser | Heavy Fighter | 4 |
| Battlecruiser | Cruiser | 4 |
| Destroyer | Light Fighter | 10 |
| Destroyer | Espionage Probe | 5 |
| Reaper | Battleship | 7 |
| Reaper | Bomber | 4 |
| Reaper | Destroyer | 3 |
| Pathfinder | Espionage Probe | 5 |
| Pathfinder | Crawler | 10 |
Rapidfire Table: Deathstar
The Deathstar is in its own category. Its Rapidfire against almost all other units is the reason why a handful of Deathstars can destroy an entire fleet.
| Deathstar against | RF Value |
|---|---|
| Light Fighter | 250 |
| Heavy Fighter | 200 |
| Cruiser | 100 |
| Battleship | 30 |
| Battlecruiser | 30 |
| Bomber | 25 |
| Destroyer | 5 |
| Reaper | 5 |
| Pathfinder | 250 |
| Small Cargo | 250 |
| Large Cargo | 250 |
| Colony Ship | 250 |
| Recycler | 50 |
| Espionage Probe | 500 |
| Solar Satellite | 200 |
| Crawler | 50 |
Rapidfire Table: Bomber against Defence
| Bomber against | RF Value |
|---|---|
| Rocket Launcher | 20 |
| Light Laser | 20 |
| Ion Cannon | 10 |
Bombers have no Rapidfire against Gauss Cannons, Heavy Lasers, Plasma Turrets or Shield Domes. These are the defences that make bomber attacks expensive.
Strategic Consequences
Using counter-units correctly
Rapidfire determines the composition of efficient fleets. Those who have many Light Fighters invite attackers with Cruisers — the RF 6 counter-unit devastatingly defeats LF masses. Those who mix Destroyers and Battlecruisers have a broad Rapidfire profile against mixed fleets.
Deathstar counter
Against Deathstars there are hardly any counters through Rapidfire — Destroyers have no RF advantage against the Deathstar. The only realistic countermeasure is massive numerical superiority with other Battleships or using one's own Deathstar in an ACS attack. Alternatively: Fleetsave when a Deathstar attack threatens.
Battlecruiser efficiency
The Battlecruiser is one of the most versatile fighters. RF 4 against Heavy Fighters and Cruisers makes it an effective counter against middle-class fleets. Combined with its high speed, the Battlecruiser is the backbone of raider fleets in many universes.
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