I will try to be as clear as possible even if many times already the research on the Royal Army is not because of errors in the same maps of the time and for the somewhat approximate character of the Italian reports in general.
However, let's start with the meanings
Autonomous battalion.
It was an undivided or regimented battalion. That is, in practice he did not have a unit above it as a command but he responded directly to the Army Corps or Army Command.
Battalion complements
It was a battalion of recruits or replacements coming directly from the Motherland. The Germans used the Marsch Btl which were the German copy of the Italian complement battalions in Tunisia.
GAF
It was an acronym for Border Guard. The Border Guard was a Special Corps created within the Royal Army to defend patriotic borders. A cross between the Alpine troops and the army in North Africa and Tunisia was deployed in practice as a line infantry. It also had a component of machine gunners who merged warfare during units created ad hoc for the increasingly pressing needs of men online.
3rd German armored explorer group
It was the Aufk Abteilung of the 15. Pz division which now in Tunisia fought as a detached and autonomous unit.
Now the direct questions
- Gruppo Squadroni Lancieri di Novara
In Tunisia the Squadron Group had arrived without armored personnel carriers and L6 / 40 tanks which represented their armament in El Alamein. Unfortunately in Tunisia he received no replacements and actually fought as a truck-mounted machine gun unit.
-Raggruppamento Corazzato Piscicelli
The Grouping was nothing more than an "ad hoc" group formed with all the surviving Italian wagons and the self-propelled still available. It took the name of Piscicelli from the name of the commander Oderisio Piscicelli Taeggi.
-Raggruppamento esplorante corazzato Lodi
The unit had also been partially destroyed during previous fighting. At the time (April 23, 1943) it was composed as follows:
- a regiment command squadron
- an armored squadron
- a motorcycle squadron
- a mixed squadron on 12 armored cars and a motorcyclist platoon
- a self-propelled platoon of 47/32
- a truck-mounted squadron on 147 Cavalleggeri
- half squadron c.a. on 4 pieces of 20 m / m
- a reduced command squadron but in conditions of being able to operate fully.
-3.o Gruppo Corazzato Monferrato now GECO Monferrato
Also arrived in Tunisia far below the initial staff, it was reconstituted as GeCo Monferrato (Monferrato Exploring Group) and equipped with various materials such as Morris trucks of war prey, some Ab 41 and Italian trucks.
-30.o raggruppamento costiero antiaereo
It was a group that arrived in Tunisia with the precise task of framing all the former French anti-aircraft batteries found on the spot. It was therefore only a command that campaign during framed a multitude of former French batteries of various calibers ranging from 25mm to 75mm. At the moment, however, I don't know what composition it had.
- Reggimento Duca D’Aosta
Tunisia was the grave of the units created for requirement C3 (invasion of Malta) which never became operational. For that need, various special units of raiders and paratroopers were created and trained, including this regiment that was part of the air force. The regiment was then hastily sent to Tunisia to make up for the shortage of line units and was lost to them. In fact, it fought as a ground unit despite having training from raiders and paratroopers.
-125.o reggimento Pzgranatieri
It was a German armored infantry unit even though there was little left at this point in the armored campaign.
The 252nd mortar battalion was a normal 81mm mortar battalion created by combining the remains of various units while the 106th counter tank battalion was a unit that used ex-Dutch Bohler 47/32 material sold by the Germans to the Italians as war prey. The cannons were loaded onto normal trucks and had to be unloaded to fire. However, keep in mind that at this point in the campaign ALL the units of the axis were in fact a shadow of themselves and even the divisions had been recomposed at best using everything a bit as you will also notice from the descriptions of the battle order.
I am also attaching an extract of the ONLY Italian units employed at the same time by the 5th German army although there may be repetitions due to errors in the weather reports that often overlapped given the very excited moments ... ...
5.a Armata Corazzata (tedesca)
Truppe d’Armata
-504.o Gruppo da 90/53 antiaereo del 3.o Reggimento contraerei
-49.o Gruppo da 75/46 antiaereo del 3.o Reggimento contraerei
-58.o Gruppo cannoni da 105/32 del 29.o Raggruppamento di Corpo d’Armata
-15.o battaglione contraereo
-Settore Biserta
--10.o Reggimento Bersaglieri con:
---Comando
---34.o battaglione bersaglieri su tre compagnie
---35.o battaglione bersaglieri su tre compagnie
---63.o battaglione bersaglieri controcarro su:
----Comando
----compagnia mitraglieri
----compagnia mortai da 81mm
----compagnia mitragliere da 20mm
----compagnia motociclisti (distaccata alla 50.a Brigata Speciale)
--Reggimento S.Marco con:
---Comando
---Battaglione (fanteria da Marina) Bafile
---Battaglione “Loreto” della Regia Aereonautica (parte)
---1.o battaglione paracadutisti della Regia Aereonautica
--41.o Raggruppamento artiglieria costiera (parte)
-Settore Tunisi
--Divisione “Superga”
--unità attaccate:
---101.o battaglione controcarro Boehler
---136.o battaglione controcarro
---2.a compagnia del 133.o battaglione controcarri
---battaglione mitraglieri Versè (compagnie mitraglieri 1001,1002,1003)
---3.a batteria del 35.o gruppo da 75/46 del 3.o R.to contraerei
---570.a coorte MVSN (Tunisina)
---Battaglione d’Assalto T (Volontari tunisini)
---22.o battaglione artieri del genio (solo 1.a e 2.a compagnia)
---2.o battaglione lanciafiamme
-Settore Raggruppamento Benigni
--1.o battaglione del 91.o Reggimento Fanteria
--5.a compagnia del 92.o Reggimento fanteria
--5.a comp. motociclisti del 5.o reggimento Bersaglieri
--70.o battaglione Bersaglieri Motomitraglieri
--24.o Battaglione Bersaglieri
--Battaglione Grado del reggimento S.Marco (Regia Marina)
--57.o e 59.o gruppo cannoni da 105/32 del 29.o Raggruppamento di Corpo d’Armata
--40.o gruppo da 75/46 del 3.o Reggimento Contraerei
--65.o gruppo obici da 100/17 (motorizzato)
--69.a batteria antiaerea da 20mm
--101.o battaglione misto genio
-Settore “50.a Brigata Speciale”
--50.a Brigata Speciale con:
---Comando
---672.a sezione CCRR
---5.o battaglione CCNN
---70.o battaglione bersaglieri motomitraglieri
---10.a compagnia bersaglieri motociclisti
---1.a compagnia del 10.o R.to Bersaglieri
---1.o squadrone del 6.o Gruppo Squadroni appiedato “Aosta”
---1.a e 2.a compagnia del 330.o battaglione mitraglieri GAF
---Raggruppamento d’Assalto “T”
---60.o battaglione mitraglieri
---Reco-Lodi (parte)
---557.o Gruppo Semoventi da 75/18 (meno una batteria)
---58.o Gruppo da 75/46 da posizione
---69.a batteria da 75/27 (da posizione)
---35.o Gruppo da 75/46 del 3.o Reggimento Contraerei
---71.o e 78.o Gruppi da 75/46 da posizione
---71.a batteria contraerea da 20mm
---12.a compagnia del 17.o battaglione carri armati del 31.o reggimento carristi (7 carri)
---compagnia autoblindo “Nizza”
---233.a compagnia mista del genio
--41.o Raggruppamento artiglieria costiera (parte)
If you still need something tell me .... the idea of Yom Kippur is beautiful because actually having information on the Israeli army of the time is not easy ........
All the best
Maurizio