oh and all of it is useable in 4th. Nothing has changed bar a rules tweaking here and there 😀

yeap definitely the Marder III Ausf.139 based on the Pz 38t and the Panzerjager I makes me want to dust off my Germans but today is Yank day

The one on the left with the big turret looks like a Challenger

@avernos is correct –

PzJg1 / 47 (4.7 cm Czech AT gun slapped onto a PzKpfw I chassis as an improvised measure once the 3.7cm PaK 36s in PzKpfw IIIDs were proving inadequate against early Allied armor).

Use in France, Balkans, and early Barbarossa / Typhoon.

A very humble, weak little vehicle.  Definitely early war, and even then use with care with ambush fire from protected positions.  Replaced by 1942 by Marder I, II, and III.

Not really used in panzer battalions, but in panzerjäger abteilung (battalion-sized detachments) included in panzer divisions or assigned at corps level for deployment where needed.

The Marder I, II, and III are pretty much the same thing, just bigger, better replacements.  As far as which ones your models are specifically, the Marders are very confusing.  Some had German 7.5cm PaK guns, others had Soviet 76.2mm guns captured during the campaigns of 1941, they are all built more or less from old chassis and wrecked tanks, etc … they’re all over the place.  In 15mm for FoW gaming I would say any of these options would work.  Use in Russia or Africa (small numbers) in 42, 43, or if you’re really pushing it, 44.

Other tank destroyers you have seem to be PzJg IVs with the old L48 7.5cm gun (“Guderian’s Duck”).  This, plus Nashorns, plus StG IVs, plus PzJg IVs / L70s is what replaced the Marders finally.  Although by then the Germans were using whatever they had available.

And @torros is correct, that’s a Challenger.  Late, late, late war British.

@tuffyears Challengers were used instead of Fireflies, where possible, for Armoured units equipped with Cromwells like the Desert Rats. Not universal, as I understand it, but common enough.

@torros The Desert Rats got some, too, as they were the only armoured units solely equipped with the Cromwells, it made sense to give them to that division for ease of parts, I imagine. Same is true of the Poles because only their Recce Squadron, equipped with Cromwells, seems to have gotten them. 200 makes them rarer than I thought, however.