This has got to be a troll...
They were being phased out well before the US entered the war. The few that were still around were more often than not exports.
China, which had 11 of the plane, claimed two G3M Nell bombers with the P-26.
The Philippines apparently had a squadron on hand, but most were bombed on the ground. The few that took off downed 1 bomber and maybe a couple of fighters before being burned on the ground by December 24th 1941. Yes, a whopping handful ever flew combat, and that combat lasted about 2 weeks after the US entered the war.
Suuuuure... This is REALLY a worthwhile plane to add to the game. I can see it adds soooo much to the planeset and the history of WW2. 
you sound more like a troll than i do...
whats your point about it being an export? doesnt mean that disqualifies it from being added into the game. let me remind you the p39 was exported to russia and its in the game...
your wrong, they claimed 8 g3ms along with several a5m "claudes".
and the point is they got kills in the Philippians. air to air kills.
and it holds a record in world war 2. a5m claudes vs p-26 peashooters engaging were the first ever aerial dogfights in china.
1st Pursuit Group (17th, 27th, and 94th PS), Selfridge Field, Michigan;
8th Pursuit Group (33rd, 35th, and 36th PS), Langley Field, Virginia;
16th Pursuit Group (24th and 78th PS), Albrook Field, Panama Canal Zone;
17th Pursuit Group (34th, 73d, and 95th PS), March Field, California
18th Pursuit Group (6th and 19th PS), Wheeler Field, Hawaii;
20th Pursuit Group (55th, 77th, and 79th PS), Barksdale Field, Louisiana; and
3d Pursuit Squadron, Clark Field, Philippine Islands.
all the squads who flew them.
so what if its only got .30 cals? even .30 cals can shoot up jap planes easily. it has some fun senarios to its name. so why SHOULDNT it be put in? it served in ww2, got air to air kills, has scenarios, and has a specific place in ww2.