Company of Heroes 2: Cover and Flanking

You can analyze a Grenadier squad as an independent unit. It can beat Engineers one-on-one, it can beat Conscripts at long range, it can beat Mortars and AT guns. A Grenadier squad suffers against Snipers, it is shut down by HMGs, it has limited effectiveness against vehicles, with its Panzerfaust primarily disabling rather than destroying them. Its Rifle Grenade can be useful against Snipers and HMGs if it manages a good hit, but it's not something to rely upon. It can acquire an LMG42 upgrade to increase its effectiveness against infantry so long as it remains stationary, which allows it to excel at its main role but provides no increased flexibility, and incentivizes you to use it more defensively.