Isn't Gloster Gladiator a bit too young to be Int I? Wouldn't Bristol Bulldog be more appropriate?
After I had written that I checked the models file and saw paradox had used Glost. Glad. as int lvl I for Finland. For Sweden it's Fighter lvl I.... :/
AFAIK Gladiators were in greater numbers and also achieved more success than Bristol Bulldogs. So yes, it should remain as INT I.
EDIT: Roughly translated from Wikipedia: "Usage in the Winter War
In the Winter War, the Gladiators served in the 26th air squadron, which flew over 600 flights and scored 34 victories with the plane type. Friendly losses were high; 6 pilots and 13 planes, of which 11 in air combat. The 12th and 14th air squadrons also received a few Gladiators and with them flew a total of 101 war flights, gaining 3 air victories and losing one plane along with the pilot."
In the Continuation War they were already so outclassed that they were only used for recoinnassance for a short period, before probably going as training fighters.
EDIT2: I checked a bit of info up on the Bristol Bulldog. It seems that it was used since 1934-35, where as the first Gladiators arrived during the Winter War in 1940 (of which many, to my understanding, were flown by Swedish volunteer pilots in Lapland). Thus I suppose it would indeed be more appropriate to make the lvl 1 INT for Finland a Bristol Bulldog, despite the fact that they were in lesser numbers, achieved far less success and were eventually converted to training aircraft during the war in February.
I just like it keep the icons true to the original names of the models. Also, there's the problem that if we replace the Gladiator with the Bulldog, then we'll have to take the Gladiator completely out, because the Fokker D.21 can't go. It was the mainstay fighter of Finland's Air Force in the Winter War, after all. And after that comes the B-239...
Well, your choice.