>>544995976
>I will wait with equipping my guys
Yeah, that's generally how it's done. I'd recommend getting at least good BR2 rifles (Not necessarily the latest in the tree) and BR2 AT launchers unlocked before moving up.
Try to get an engineer in every squad and remember that rallies win games and you can't always rely on the blue enemy to not be braindead subhumans and make any on their own.

For "bolt-action" rifles, I recommend the Winchester and Mannlicher for Soviets/Krauts as they can both work the bolt without exiting ADS.
For Japan, it's just the Type 38, which is available early, but there's no ADS-bolter. I've heard good things about the Otsu, but I don't have it unlocked yet and generally don't use BR2 semis.
For burgers, the Ross, the Enfield, and the No.4 are all ADS bolters. The No.4 can easily claim to be the best bolt action in the game due to also having a 10-round mag, but it's pretty far along in the tech tree. I personally just use M1 Carbines at the moment because the other stuff is gay and br*tish, also why I simply use the Bazooka instead of the Piat.