It all depends on Strelok's loadout.
Just brings his rugged AKS-74u, a few Grenades, and the all-purpose SEVA Suit? Good chance, but no helmet.
With a helmet, he has 2nd generation night-vision. Plus a closed circle breathing module. But it's damn heavy.
He may require a few artifacts, but they vary a lot. He might just bring 5 health healing artifacts, or a bunch of cutting resistant artifacts.
As for weapons and shit, let's see.
Hunting Knife: Of course he'd have it. He's strong enough to break open crates and metal boxes with it in one swipe, but blowing up an APC is where you divide possible from glitches.
Makarov: Likely as a sidearm, has bullshit accuracy but almost infinite durability.
AKS-74u: The close range assault rifle, rugged but nice.
Fast shooting AKs-74: A stock AK-74, but with an absurdly high fire-rate, higher accuracy, and higher durability.
Stalker suit: Somewhat bad night-vision, and less resistance to stuff.
Merc suit: Similar to the Stalker Suit but has lesser resistance to all things except bullets.
VSS Vintorez: The silent, deadly, semi-automatic sniper rifle. Would be easier to use in the jungle rather than an SVD.
AS Val: Similar to the above, but automatic without scope.
AN-94: Unlikely to use, but pretty accurate.
ZM LR-300: Accurate, with good damage, but likely to jam a lot in the jungle.
SiG Sauer 550: Similar to the above, less likely to jam, and likely to be used by Strelok,
due to previous usage.I'm not deciding on his loadout though, so I'm just gonna say he brings his SiG or his AKs-74u, his SEVA Suit, and begins the fight with a few random artifacts.