Sunday, April 6, 2025

O Group Scenario- Crossing the Rapido

 36th Texan Division vs the 15th Panzer Grenadier Division

I've been working on some scenarios for O Group centred on battles in the Italian Campaign. The first one is base don the crossing the the Rapdio by the 36th Texan Divison in January 1944. 

Background

By January 1944 the US 5th Army under General Mark Clark had reached the German ‘Gustav-Line’ defences along the line of the Garigliano river.

In the stalemate which followed the Allies sought to establish a bridgehead on the north side of the river and force a way through the German defences. The Germans were in well prepared defensive positions on high ground overlooking the Americans and believed that they had an excellent opportunity of inflicting a telling blow upon the Allies.  

21 January 1944

On the night of the 20-21st of January the 141st and 143rd regiments of the 36th (Texas) division attempted to cross the Rapido river and establish a bridgehead on the northern bank near the town of San Angelo.

The attacks started with the 36th Infantry Division firing an artillery barrage of 31,000 rounds on German positions which resulted in only negligible damage. Feint attacks were conducted by the 34th Infantry Division were conducted further to the north near Monte Cassino to divert attention from the main advance. 

Mission

The Americans must establish a bridgehead across the Rapido river.  To do so they must have at least an infantry company firmly established on the northern side of the river at the end of the game of have inflicted 3 FUBARs on the Germans and forced them to retreat off the table.   

·       If the Americans capture both sections of San Angelo they automatically win the game.

·       Capture of each farm counts as 2 casualties towards breaking the German force.

The defender wins if they inflict 3 FUBARs or prevent the Americans from achieving their mission objectives.

The game ends after a maximum of 16 turns

Deployment

The Americans start on the southern bank of the Rapido. Armour and vehicles cannot cross the river.

Infantry are assumed to cross in assault boats (can use actual models if available in your model collection).

Initial US combat patrols and company HQs must start on the southern side of the river.

Once a company HQ is established on the northern bank of the Rapido combat patrols can be deployed within 18” of the company HQ as per normal rules.

My table 


Orders of Battle

American OOB

The Americans start with 23 point force based on a rifle battalion.  They can include vehicles and AFVs but these may not cross the Rapido River (tanks can offer fire support from the southern bank of the river).  The American’s can have a maximum of two Sherman and/or M10 platoons. US equipment chosen must be appropriate for January 1944.

German OOB

The Germans start with a 10 pt infantry or panzer grenadier battalion. The Germans may field a worn battalion and if they do so then they get 2 free hasty minefields.  

The only armour available to the Germans is a platoon of panzer IVs which are in reserve and can only arrive on table when dawn arrives on the battlefield (these are not included in the initial German force of 10 pts).

Special Rules

Battalion O Group dice: The Americans start the game with 9 O Group dice, the Germans start with 8.

Opening barrage: If running a worn battalion the Germans ignore any opening barrage casualties.

German Panzer Reserve: A panzer IV platoon is available from first light and must deploy/start the game in San Angelo.

Night Attack: The river initial American assault takes place at night.

At night all targets count as obscured no matter if they are in cover/terrain or not. Units that did not fire can only be seen a maximum of 20” unless they fired in their previous turn. 

Spotting dice

Units are spotted on a following:

0-10”      4+

10-20 “   5+

20”+       6+

Obscured

At night all targets count as obscured no matter if they are in cover/terrain or not.

Max range

Units that did not fire can only be seen a maximum of 20” unless they fired in their previous turn.

Direct fire to hit penalties

-1 to hit target at night with direct fire

Artillery HE penalties

-1d6 firing at night (represents not being able to see target accurately)


Dawn: From turn 6 onwards roll to see if dawn arrives. On a 4+ it has and normal visibility rules apply.

The Rapido River: The river is impassable to all vehicles and gun teams such as antitank guns. Ther is no penalty for infantry teams crossing the river (they are assumed to be sing assault boats).

Defences

The Germans can start with 1 platoon and 1 weapons team section dug in. These dug in positions cannot be placed within a BUA. If a dug in/entrenched platoon is placed in ambush the trench is also concealed.

The Germans also start with 2 hasty minefields the locations of which are noted by the German player. 

Artillery Missions

·       The Americans have 3 artillery missions

·       The Germans have 1 artillery mission.

Terrain

San Angelo is considered a two section BUA and is elevated.

Farms: The two farms are not considered elevated and count as single storey buildings only.

High ground: Units on the hill/ high ground count as in elevated terrain and is considered higher than woods or buildings below.  

Orchards: LOS passes through but not out of the far side. They are classed as cover.

Rapido River: Is impassable to vehicles and gun teams such as AT gun. Infantry crossing the river roll 2d6 for movement and take the highest dice roll.

Fields: The area consists of a number of fields which are classed as cover but do not block line of sight.

Walls and hedges: Offer cover to units behind them or against them. Vehicle against a wall or hedge can see through to shoot.

Fortifications

Trenches (p47)

-2d6 damage to troops in foxholes and trenches.

Hasty mines (p49)

4” x 1”

Not placed on table but location noted by defender.

When an enemy unit enters a hastily mined area roll 5d6 for shock. 1 shocker per 4+.

Hasty mines only attack once and are removed.  


Historic Outcome

143rd Regiment

On the night of the 20th of January the 143rd regiment attacked north of San Angelo on a one battalion frontage and managed to get most of a battalion across the river by morning. However, the 1st  Battalion of the 143rd regiment found itself in a pocket which was subject to interlocking German machine gun fire with the river to their backs. Enemy tanks began firing on the American positions from San Angelo so to escape being wiped out completely the battalion commander ordered his men back across the river.

A renewed attack on the night of 21st/22nd succeeded in getting two and a half companies of 2nd battalion across the river and a couple of footbridges were established. The Texans were to endure ferocious fire during the 22nd and tried to hold onto their shallow bridgehead across the river.

Sources

Ellis, J (1984), Cassino The Hollow Victory, Aurum Press

Plowman, J & Rowe, P; (2012); The Battles for Monte Cassino, then and now; Pen and Sword Books ltd

https://www.texasmilitaryforcesmuseum.org/36division/archives/rapido/rapido2.htm

WW2 TV: Sacrifice on the Rapido https://www.youtube.com/watch?v=nxVaxRPT4d8