In addition instead of being of power level 320 and come after t1 it could easily be toned moved at t0, where it can help vs Ass.Grenadier S.P. and vs garrison with an incendiary light gammon.
Om the serious side.
Even if officer is moved to T1 and toned, I will prefer to keep the light gammon bomb, it do decently vs garrison useful in more overall situations than flame nade, can be locked behind platoon CP.
Additional model then should be consider move to vet 1 since the unit have less fire power.
Recon, should be keep if possible , it is a handy tool since ukf lack direct recon options. Removed vet requirement but require company CP to be active will make it an equivalent to major.
Also, officer can use a hammer/anvil - like upgrade system, hammer provide thompson, anvil is rifles and bren.