Currently it basically has no uses whatsoever, than just spam grenade launchers or SFs. That doesnt really work well.
So heres how to make them more viable.
This will revolve just making them have a secondary power up. Similar to a radio, flamethrower, engineer hammer.
This would be in various resupply crates, campaign specific to keep them historical.
There would be several crates to chose to make them best suited for you:
Ammunition crate - Twice as small as a regular engineer built, but can be deployed faster.
Supply crate - would resupply engineer supplies and allow them to build more fortifications
Anti-tank crate - would drop a crate filled with AT weapons. Not too many but enough to take out tanks.
Supply and ammo crate would be the same for all sides and campaigns, just esthetic differences, but the Anti-tank crate would be nation and campaign specific:
Moscow:
Axis - M24 anti-tank grenadebundle AT grenades (4)
Allies - RPG-40 anti-tank grenades (4)
Berlin:
Axis - Panzerfaust 60 (3 of them) or M24 anti-tank grenadebundle (4) or H35 magnetic anti-tank mines (3)
Allies - Panzerfaust 60 (3) or RPG43 Anti-tank grenades
Normandy:
Axis - Panzerfaust 30 (3) or M24 anti-tank grenadebundle (4) or H35 magnetic anti-tank mines (3)
Allies - Grenade, Hand, Anti-tank, No.73 (4) or Grenade, Hand, Anti-tank, No.74 (ST) (4)
Pacific:
Axis - Lunge mines (3) or Type 3 grenades (4)
Allies - Grenade, Hand, Anti-tank, No.73 (4) or Grenade, Hand, Anti-tank, No.74 (ST) (4)
Tunisia:
Axis - M24 anti-tank grenadebundle AT grenades (4) or H35 magnetic anti-tank mines (3)
Allies - Grenade, Hand, Anti-tank, No.73 (4) or Grenade, Hand, Anti-tank, No.74 (ST) (4)
Stalingrad
Axis - M24 anti-tank grenadebundle AT grenades (4) or H35 magnetic anti-tank mines (3)
Allies - RPG-40 anti-tank grenades (4)
You can chose whichever AT crate loadout you want for your riflemen.