German Invasion of Gibraltar:
On June 18 1942, the XXVIII Army Corps, commanded by Generaloberst Wilhelm Keitel, reaches Gibraltar. The corps consists of three Infantry Regiments, two Panzer Divisions, twenty medium and heavy artillery battalions, two observation battalions, four engineer battalions, four smoke battalions and over a hundred Leichter Ladungsträger Goliath remote-controlled tracked mines.
Before the Corps makes any major advances (and before the Reichsluftwaffe makes any moves), the observation battalions are ordered to locate British anti-aircraft guns, after which the engineer battalions are sent to destroy them. Unfortunately for the Corps, the engineer battalions are spotted and captured by the British ‘Gibraltar Regiment’. All British troops are alarmed about the invasion, forcing Keitel to initialize a full-blown offensive into the fortress.
The German artillery guns are deployed on the boundary of Gibraltar, while the Panzer Divisions are sent to penetrate into the newly formed British infantry formations. This results into huge casualties on the British side, but the British troops are soon reinforced by tank regiments.
The German panzer units are greatly outnumbered by the British tanks, and are immediately ordered by Keitel to withdraw. A new frontline is drawn right outside of Gibraltar, south of the Spanish town of La Línea de la Concepción. Keitel immediately orders his troops to fortify their line, to dig themselves foxholes and to install machineguns to prepare for an attack by the British.
As the British forces under Bernard Montgomery advance upon the German positions, the Goliath tracked mines are sent to destroy the British tanks. This marks an initial success until the British troops discover the vehicle’s weakness by cutting off the command cables. While the German machineguns open fire upon British infantry formations, the German panzer is immediately drawn back unto the field and, this time, manages to force the now weakened British tank formation to withdraw.
The German infantry is immediately sent forward, and they are ordered by Keitel to flank the British troops and to clear the arillery positions. This goes successfully, and the British troops head into the underground tunnels under the Rock of Gibraltar. The German observation battalions requests Reichsluftwaffe intervention to help the German panzer take out the last remaining tanks, and in the meantime the German infantry enters the limestone tunnels. Large dogfights follow, in which both sides inflict great damage upon each other.
Underground, the Germans find a huge man-made caverns complete with barracks, caverns, offices and hospitals. Urban warfare follows, and the German soldiers are equipped with flamethrowers and ordered to check all buildings. This goes unsuccessfully, and the talented British troops inflict many casualties on the unprepared German troops. After realizing the failure, Keitel orders the retreat of the German infantry and instead orders the bombardment of the limestone formations by his heavy artillery battalions.
After 15 minutes, governor Lt. General Sir Noel Mason-Macfarlane decides to avoid the destruction of the underground system and the death of any more British troops, and thus surrenders to Keitel, granting him full control over Gibraltar.