IMO Rubicon's figures work well with the other plastic , metal and resin figures I have . All though it's nice to see uniform size and shape men on the gaming table , in reality people come in all shapes and sizes . And as long as the gear and personal weapons the figures come with , match the other brands you have it will work . Guys use 1/35 & 1/32 figures in 1/32 aircraft dioramas all the time due to lack of options in 1/32 . If all have the same rifle , canteen , mess kit , etc it works . IRC helmets came in various sizes , ( US - 3 & German - 5 ), so you don't have to worry about that although you do have to pick and choose as some company 's figures are all over the place on scale , even in the same kit ( early MiniArt ) . I know I've rambled on a bit about 1/35 , but that's a scale I've had lots of experience with , having built WW 2 figures from maybe 20 different companies over the years . In 28mm we only have Warlord , PSC , Perry , and Rubicon making WW 2 plastics , with PSC making 3 kits and Perry 2 . Warlord has about a dozen , and they have changed in size since their first releases , the late war German and the Brits are not as heroic as the last few kits, with the German weapons sprue rifles being much more to scale than the new ones , but you tend to break them easier . Perrys are on the slight size , and PSC are a little on the ape ugly size , but as modellers we should be able to mix and match and end up with unique , great looking figures , I think I do ,now if I could just improve my painting
OK , this might be pushing it a little